I never tried the rytm but I have a DT. I think the rytm is more fat and maybe more suitable for techno or minimal because of the analog engine.
But, the DT is very powerfull too. You can use lot of analog drum sample and original percussion to make cool groove. I know the rytm can sample too but I think it’s not as powerfull as the DT.
If you listen people on this forum you absolutely need tons of expensive gear, but believe me, you can make a full track only with the DT. Check some videos of Dave Mech or Ivar Tryti (I absolutely love our prolific @eaves / Ivar Tryti's music, and thought it would be cool to have all in one thread) making cool beat only with the DT 