IMO none of the ratings there are worth more than the job they are attached to. EX: I'd take a G200 job with better pay and home life over a less desireable Challenger, hawker job etc.
From talking with recruiters/headhunters, all people are actively interested in today are experienced Intl Global/G550 guys with maybe some management experience. They claim there's actually a shortage there....?.....and as far as contracting, it's all overseas, long term, and on those same planes.
Just enjoy the job if it's a good place, who cares what they send you to train on. You will likely wind up on a few of them and will be sick of going to yet another school before you know it!
Good luck