I am assuming your question is about general studies comparing Arial to Tahoma/Verdana.
Let me state beforehand that any kind of "better" is highly subjective, but yet there are studies trying to do the impossible.
The first study I want to show you comparing Arial to Tahoma/Verdana shows that from the surveyed people Arial was the most preferred font, with Verdana coming in at second place and Tahoma third (out of the three). However that Arial was the preferred choice might be due to the study at hand as the researches indicate:
[...] since it has been most preferred in our previous font studies that examined children (Bernard, Mills, Frank, & McKown, Winter/2001), older adults (Bernard, Liao, & Mills, Winter/2001), and college students (Bernard & Mills, Summer/2000) from A Comparison of Popular Online Fonts: Which is Best and When?
Interestingly the study was conducted on a computer, so even though Verdana was designed for the screen the participants still chose Arial over Verdana - maybe because people are so accustomed to seeing Arial/Helvetica everywhere?
A newer study (2002 compared to the last study from 2001) suggests that Verdana is the best choice:
If anything I would suggest you read the last mentioned 652-page study. As for your question why Google chose Arial over Verdana - I don't know. Verdana was designed for the screen using hinting to snap the stems to pixels - hence it looks clearer on screen. People are accustomed to seeing Arial everywhere though, so they might get a feeling of "being at home".
If you want to open another can of worms, look into serif vs sans-serif fonts. Serif fonts are more legible in print, but on the web sans-serif fonts predominate - several studies exist comparing these findings.
Verdana 和 Tahoma 是 Microsoft 提供的字体，可能无法普遍使用。例如，在 Linux 上，您需要获取 msttfonts（或类似名称）软件包来安装一些 Microsoft 字体，但该软件包仅包括 Verdana。
Verdana and Tahoma are fonts from Microsoft, and might not be universally available. On Linux for example, you need to get the msttfonts (or similar name) package to install some Microsoft fonts, but that one includes Verdana only.
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我假设您的问题是关于比较 Arial 与 Tahoma/Verdana 的一般研究。
让我事先声明，任何一种“更好”都是高度主观的，但仍然有研究试图做到不可能的事情。
我想向您展示的第一项研究将 Arial 与 Tahoma/Verdana 进行比较，结果显示，在受访者中 Arial 是最受欢迎的字体，Verdana 排在第二位，Tahoma 排在第三位（三者中） 。然而，Arial 成为首选可能是由于正在进行的研究，研究表明：
有趣的是，这项研究是在计算机上进行的，因此即使 Verdana 是为屏幕设计的，参与者仍然选择 Arial 而不是 Verdana - 也许是因为人们太习惯于到处看到 Arial/Helvetica 了？
一项较新的研究（2002 年与 2001 年的最后一项研究相比）表明Verdana 是最佳选择：
另一项研究将 Verdana 归类为“沉闷”，Arial 归类为“缺乏想象力、稳定、墨守成规”，您可以在这里阅读所有相关内容：字体的感知：感知的个性特征和用途。
如果您只寻找老年人的结果，Arial 是 14 磅尺寸的最佳选择，但 12 磅尺寸的 Verdana 更胜一筹：确定最适合老年人的在线字体。
最近的一项研究（2007）调查了“屏幕类型的心理学：有关字体个性的调查、适当性以及对文档感知的影响”（顺便说一句，652页的字体质量！）表明Verdana在所有字体中具有最高的易读性排名，同一项研究还发现，21 人将 Verdana 选为他们的最爱，但 60 人投票给 Arial（同样可能是因为他们知道 Arial 的外观） ？）。
如果有的话，我建议您阅读最后提到的 652 页研究。至于你的问题为什么 Google 选择 Arial 而不是 Verdana - 我不知道。 Verdana 专为屏幕设计，使用提示将茎捕捉到像素 - 因此它在屏幕上看起来更清晰。人们已经习惯了Arial随处可见，因此他们可能会有一种“宾至如归”的感觉。
如果您想打开另一罐蠕虫，请研究衬线字体与无衬线字体。衬线字体在印刷中更清晰，但在网络上无衬线字体占主导地位 - 有几项研究比较了这些发现。
I am assuming your question is about general studies comparing Arial to Tahoma/Verdana.
Let me state beforehand that any kind of "better" is highly subjective, but yet there are studies trying to do the impossible.
The first study I want to show you comparing Arial to Tahoma/Verdana shows that from the surveyed people Arial was the most preferred font, with Verdana coming in at second place and Tahoma third (out of the three). However that Arial was the preferred choice might be due to the study at hand as the researches indicate:
Interestingly the study was conducted on a computer, so even though Verdana was designed for the screen the participants still chose Arial over Verdana - maybe because people are so accustomed to seeing Arial/Helvetica everywhere?
A newer study (2002 compared to the last study from 2001) suggests that Verdana is the best choice:
Yet another study would classify Verdana as "dull", Arial as "unimaginative, stable, conformist" which you can read all about here: Perception of Fonts: Perceived Personality Traits and Uses.
If you are looking for results for only elderly people, Arial is the way go at 14 point size, but at 12 point size Verdana wins: Determining the Best Online Font for Older Adults.
A even more recent study (2007) investigating the "Psychology of onscreen type: investigations regarding typeface personality, appropriateness, and impact on document perception" (btw that is 652 pages of font goodness!) shows that Verdana has the highest legibility ranking of all fonts, the same study also finds that 21 people voted Verdana as their favorite, but 60 voted for Arial (again maybe because they KNOW the look of Arial?).
If anything I would suggest you read the last mentioned 652-page study. As for your question why Google chose Arial over Verdana - I don't know. Verdana was designed for the screen using hinting to snap the stems to pixels - hence it looks clearer on screen. People are accustomed to seeing Arial everywhere though, so they might get a feeling of "being at home".
If you want to open another can of worms, look into serif vs sans-serif fonts. Serif fonts are more legible in print, but on the web sans-serif fonts predominate - several studies exist comparing these findings.
Verdana 和 Tahoma 是 Microsoft 提供的字体，可能无法普遍使用。例如，在 Linux 上，您需要获取 msttfonts（或类似名称）软件包来安装一些 Microsoft 字体，但该软件包仅包括 Verdana。
Verdana and Tahoma are fonts from Microsoft, and might not be universally available. On Linux for example, you need to get the msttfonts (or similar name) package to install some Microsoft fonts, but that one includes Verdana only.