dev dont play with your friends because they're your friends when you play with somebody there's a connection to be made. you have to feel it in your bones or it won't work that connection is much base 'bout style.
see i play in a band more than a year now and we play what we like (of course we dont always agree but basically we're the same kind of people). nothing compares with playing what you like looks at the eyes of your partners and see that they like it too and the same you like what they play and see the pleasure in their eyes...
we had some guitarists friends that played with us once in a while but we told them: "you play great but your not our style"
once the drummer played with few other guitarists (i wasnt there) and i was afraid that he'll find better players and leave the band but when i spoke to him he said: "ya they play better then you, one of them was reeeaaal good but they didnt have your way after 5 hour i stopped playing..."

anyway play your own style and if they dont like it f*ck'em