Welcome aboard,
I hope this helps. Most fractionals like Netjets interview candidates with an ATP 2500 hoursTT, 500+ME, and turbine experience. 121/135 experience is great. You most likely fly part 91k (more intense then 91, but not as intence as 135) On the other hand Flight Options hires with 1500TT, ATP written, and 500 hours of twin time. I doubt that competative though.
As for the degree- A four year degree is always good. Its almost expected these days. I don't think the 2 year degree would set you back if you stressed finishing the 4 year. But there's a lot of guys out there with the 4 year degree to compete with.
If your looking at fractionals I'd suggest netjets- they just cleared up a whole lot of union/management issues that will make life there a whole lot easier for a co-pilot. flex schedual 7 on 7 off. Based in Columbus Ohio with bases all over. Usually start off in a Citation Ultra (V).
I you interview there get some citation sim time. Their sim tends to weed a lot of people out on the front end.
Another option is a straight 91 corporate which is nice while it last but tend to make people job hop like I've done.
Again, hope that helps.