I loose limit games I flushes.

A flush draw has enough pot equity to drive the betting.
A flush draw can allow you to chase down other outs.
Even a backdoor flush draw can give you a little extra equity.
You know pretty much where you are at.
If you hit your flush, it's *very* unlikely you'll be sucked out on.
When you hit they'll pay you off like a slot machine.

From any position, the only unwired, unsuited hands I play are AK and AQ.
From MP I add AJ and KQ, if I'm opening or behind loose limpers.
From LP I add AT KJ QJ if I'm opening
From the button I add KT QT JT if I'm opening