I personally like the SIG ARF's. They go together as well as their kits and the manuals for both the ARF's and kits are fantastic. Your available funds and the amount of time you want to wait to get into flying the plane (at least for me) dictated which I bought.
My theory is, get 2 planes flying (ARF's) and build the third from a kit if you want to try it.. That way you have a spare until you get the kit done. Some people like to build, others want to fly as soon as possible. I belong to the "as soon as possible" crowd, but after doing my first kit and having multiple planes, I found that kit building was relaxing for me.
Check out this link
http://www.hobbiesandgames.net/default.asp
They are very reasonable and shipping is free for orders over $100.
There is a joke about SIG kits that hold allot merit
The joke goes:
Open the box, drop in a bottle of CA, close the box and shake well for a few minutes
Open the box and out pops a plane
I did my something extra in about 3 weeks (not including covering which was another week working slowly) and worked about 3 hours a night, 7 nights a week which was the harder of the bunch.