Just in general, based on the things I've heard about both headphones, the 201s definitely seem to be the better regarded cans. Here's the FR comparison:
The 201s are considered by many to be "budget kings" meaning they are some of the best sound quality for the money if you are on a very tight budget. However the 8323s are also considered very good budget cans as well. Personally I would go with the Sennheisers just because I trust the brand more and my guess is that they would be more comfortable. But I haven't tried either one so I can't say for sure. Good luck and let us know.
EDIT - I had the FR graphs mixed up. Its the 202 that has more bass.