Yeah i have used a lot.
The best for me is Auto-GK.
I'd always rip to XviD though.
You will need DVD Decrypter to copy the VOB and IFO files to the drive.
Once you've done that you can rip encode them to AVI using Auto-GK.
I got the same problems with you when i used Dr DivX.
You might need to try the VOB files you have ripped to the PC and see if they stutter.
I have used Auto-GK for ages now and have had no problem.
With Dr DivX my results ended up bad, audio out of synch, purple picture, foreign audio when i selected english.
Encode to XviD with Auto GK.