I want to find out why people prefere one over the other. I like FuBar more, a lot more; actually I don't even consider titan panel worth using. In this thread post like pro's and cons for both of the addons. Look at my answer for an example.
FuBar. Pro: Less memory intensive than titan panel, more plugins, more bars. Cons: I honsetly can't think of any..maybe the default background?
Titan Panel: Pros: It looks a little(big emphasis on a little) better than fubar, some of the icons look better than the fubar ones. Cons: Not updated any more (offically, and still it hasn't been updated to show addons memory usage.), you have to download plug-ins for it that are already in titan panel, but don't work unless you have the non-embedded ones, it's bloated, not a lot of plug ins, the durability one isn't that accurate.