1. I don't remember how I disabled them, but I'm pretty sure it's in options under user interface, and tooltips. If you just click around on all those, you'll find the settings you like. And to remove the comparison tooltips, "/cl_chain_tooltips 0" is what you want to add to your eq2.ini
2. I use a simple custom UI for the raid window. Which btw, you can just resize around to make it 2x2, it also doesn't have the annoying background colors so you can see through it, and not get annoyed by the pink, blue, purple, orange or whatever colors exist in the raid window. Grab it
here.
3. Try moving eq2ui_mainhud_mainchat.xml out of wherever you had fetish install to gain the old chat window back, which does what you want.