I've done both for jams. I found that I was much less stressed putting this one together (small scope puzzle game). My last game was basically a metroidvania demo level (so much terrain mapping and lighting to do) and had so much going into it that the bug hunting was never ending. This one I just got to have fun with building puzzles once I got the original layout set up. I think I'll aim for smaller, better designed games in the future for jams. Then maybe I'll expand them out afterwards. Big games are impressive, but usually pretty shallow gameplay-wise due to the time limits.