1. Firefox/Mozilla (Linux, Mac, Windows. Doubt it'd compile on this old AIX.

Anyways I like Mozilla a bit better on Linux, but Firefox better on Windows. Meh, I usually use Firefox though, it is better.)
2. ELinks (Linux, also tried the various lynxes and linkses, and links-2, but ELinks is my favorite definitely)
3. K-Meleon (Fast on Windows, although not pretty)
4. Galeon (lean

, Linux)
5. Opera (gah, relatively bloated and ads, until I used a "crack", Windows)
6. IE (meh, it's the default settings and the lack of standards and the random crashes, but at least not bloated, Windows and Linux (wine))
7. Safari (what's that? you want fancy effects? HA!, Mac)
8. Netscape (ugh, bloated, ugly (even NS7 -- guess what, I use the "Classic" theme on Mozilla), Windows)
9. Konqueror (I don't like the KDE interface much...)
10. A Simple Renderer for Simple People (A rendering engine I wrote: it supports 4 HTML tags in total, and is written in Java, for a class project, only ran it on Windows at that time... utter mess... although its design was headed in t3h right direction, yes it was!)