RE4 wasn't a bad port. Many of the graphical issues were fixed after the first patch. It didn't look too bad when you run it at 60fps in 1080P. They should have used the GC assets instead of the PS2's though.
Lost Planet was a even better port job. The visuals were upgraded quite a bit for the PC and the performance was good. That's why I have high hopes for the PC version of DMC4.