I have been using OpenOffice for some time now without problem. I admit I haven't used anything except Kwrite since Oracle took over OOo, but I hear that LibreOffice forked off because of what Oracle is doing with OOo.
Awhile back I was using OxygenOffice. Other than the added templates, I don't know what they changed, but those were helpful to have rather than searching the OOo website all the time.
I also know of go-oo, but I haven't used it.
As far as I'm concerned, KDE3/TDE support is important, so I don't know why openSuSE (or really anybody) would disable it other than that people tend to do stuff that's counterintuitive just because they feel like it and haven't learned how to think of the consequence (or how think in general).