[GuidoSarducci]

I agree this this is a somewhat complicated question and could generally be answered with "it depends".

A lot has to do with the read of the table and whether you think you're going to face a raise. Suited connectors thrive on implied odds, so you want to see the flop cheap and you want many people in the pot. To lower the risk of getting raised, these only really have equity in late position if you can limp in.

If you don't hit your flush or straight, though this hand is pretty much done. Too many times will you hit the top pair with something like JT only to be shown AT.