[fretelöo]

Well, first of all it indeed doesn't matter all that much. However, pot is now 7BB (correct?). So if he just folds 14% that bet is fine. Second, if he calls, we still have decent equity, same goes if he raises.
Third, just for the off-chance that he's drawing too, I'm keeping the lead because in those cases, my bluff beats his bluff.

Or in short: Given our hand/draw, a raise (worst case) doesn't really hurt us all that much, while a bet has some potential benefits to it.
What I think is a lot more interesting is whether to cap the flop if we know that villain will bet any turn for us if we just call is really worth it. If UTG is indeed calling the cap we're making 2/6 or so of a SB from that cap in immediate expectation, right? If UTG is folding, we're contributing 50% for our ~50% equity...