As I mentioned before if on reserve you will not get used enough to go over the minimum guarantee. It is possible to pick up a trip on a day off to make some extra as that is paid above the guarantee. This will be hard being New. IWA and LAS seem to be about the same seniority LAS maybe a bit less. PVU is smaller and outside people living there it turns over a bit at the bottom, you would be PVU flying is a lot 4 leg days but again being junior the first year it's hard to get extra pay. It is hard to guess which base would give you the faster opportunity to hold a line of flying. I would not plan on getting more than min for at least 6 months and it could well be over a year. If you end up on the 737 you will be in Florida and at least at first it will be hard to get extra flying with all the training that will go on, it will be possible to get to a line faster on the 737 but not a sure deal.