I found myself in the same situation as you.
I bought both a case seahorse whittler and a boker congress carver. I had originally thought I would prefer the whittler based on looks alone, but I find I much prefer the carver. The fit and finish on the boker carver was very good, whereas the grinds on the case seahorse left something to be desired, as they were quite uneven. As well, the coping blade on the whittler had quite a bit of recurve, something I'm sure was not intentional. You'll find the edges are probably going to require some work anyways, as they are much more obtuse than most dedicated carving knives.
It might also be worth mentioning that I don't find either knife to be particularly comfortable in the hand when whittling for long periods. However, I like the fact that it's a folder and I can just chuck it in my pocket.
The traditional sub forum has some great threads on whittling knives as well. Worth checking out.