Depending on the contract you sign, Brookfield for example have floating contracts, you may get to see all of them!
Your chances of getting one of the sunshine bases straight from convex are minimal: there are queues of people bidding for the sun.
Of the UK mainland bases EDI starts in Sept and they will be looking for crews there: LPL, BHX and EMA are all good as is PIK.
The BRS folks seem quite happy and some guys are still hoping to get BOH.
Really does depend on where you want to be:UK, and where, or Europe and where.
Don't forget that even if you make the wrong choice you can bid to move.