I am wondering what is better to run as a list with corran, try and support him with 2 three attack support ships or run a fat Han or super chewie as his wingman.

Corran + fcs + ptl + r2d2

Chewie + gunner + mf + 3po + predator ( Han + gunner + mf + 3po)

Or

Corran + fcs + ptl + r2d2

Ethan + pred

Rookie pilot

Also if you are using Han and you have a target lock on a ship and you use hans reroll ability can you reroll all the dice and then use target lock to reroll any blanks etc ?

I like the first list better, but I recommend that you try them both a couple of times each and see which one you like better, since it will come down to your playing style more than anyone else's.

if you are using Han and you have a target lock on a ship and you use hans reroll ability can you reroll all the dice and then use target lock to reroll any blanks etc ?

No, a die can only be re-rolled once.

I used Corran with Predator, FCS, and R2-D2, with Dutch, Ion Turret, R5-K6, and a Gold with Ion and R3-A2. Demolished every list i came up against at the last tourney, except for round 3 due to bone head maneuvering on my part.

I prefer Han/Corran over Chewie/Corran. If you VI Han then he eliminates the Whisper/Soontir threat in a zone. And Corran can handle nearly anything else all by himself with that build.

I'm thinking Dash will be better than Han on this team except against whisper.