For group, try Himay's Group. It's sleeker and can go horizontal or vertical. Drums has a default player window with C2C. Aseekia's is complimetary to Himay's and RickF's. YaUI is pretty simplistic, too, however the matching group window seems to be broken.

Old group windows are iffy since they just made a change to include pets in the group window that broke alot of them. Sony has a lot of stuff hardcoded, so some things can't be changed which makes UI options very limited. You can try figuring out the UIBuilder that SOE put out to customize a mod you like, but then you get stuck having to redo it yourself if they make changes that break it.