I previously had the i4's but found that the foam wore away far too quick, also the velcro for the ears wore away, you can use super glue but this shouldn't really happen.
So far I am ejoying the Profits and the foam is amazing, I havent had them long enough to comment on the durability but as state so far they have held up nicely and feel more comfy.
personally I think you should just ask to try on someones i4's and profits next time you go balling, everyone is friendly when someone asked there advice.
All in all it wont cost that much to buy a pair of either off here and if it doesn't work out then you can trade or re sell for a similar amount.