Both Mastercraft and Bielinski are huge builders. Its nice in teh sense that you'd think they are stable, but in reality Bielinski has been in serious financial strains since a CEO of theirs basically stole a bunch of money. Now I may some what biased against Bielinski since my mother grew up near the family and has told a few stories, but in general they tend to be ok. I think Mastercraft is slightly better but it really depends on what you're looking for. Stay away from Karek, you can always point out the Karek home because it always looks like crap. You may want to look into Brookstone, they are premoded though. I assume given those choices you are looking for a smaller home, where exactly are you thinking of building? Bellman for example doesn't do much in the Fox Valley that I'm aware of. One thing to keep in mind is Bielinski models are all fully upgraded and don't in most ways represent the base price you get quoted. Especially now don't be afraid to approach smaller custom builders, even though their model homes may be 3500 sq ft, they'll build smaller right now. If Russ wants to IM me with a little bit more specific info I may be able to help a bit more