As for which is best, if you’re not using it online and aren’t interested in using it as a Blu-ray player then you could just flip a coin really.
The PS3 has marginally better hardware but they’re as close as makes no odds in practice. Both platforms have exclusive titles, so that may sway your decision. Also, do you have friends you can borrow games from
Depends what you mean by ‘better hardware’
In general, cross platform titles tended to run with slightly better performance on xbox 360 compared to PS3, so in that sense the 360 is the better hardware.
On the other hand the 360 had a crap-ton of reliability problems early on so in that sense the PS3 hardware was better.