...and can honestly say that they are both extremely nice guns. Mechanically they are both very nice, but the Colt does outshine the Springer just a tiny bit when it comes to fit and finish (mostly finish). Since they shoot and handle almost identically the cosmetic differences become more important.
The springer does have a few fancier options on it though. Such as ambi-safety, extended thumb safety, beavertail, etc.
If you are asking my opinion, I would always be willing to pay a little extra for the Colt. Partly because of the better finishing and partly because of the fact that Colt's really hold their value.
Springer Champion
Colt XSE
Springer
Colt