I occasionally see anti-Ziva sentiments about, and I can't even get outraged or argue against them because I'm just left going "h-how???"

Heh, I OT+ because I'm an OTPer who can't stand love triangles, so OT3 (or more) becomes my default solution. But sometimes I'm more passionate about it than others, and White Collar sounds like it would be one of those. USA does have a bead on delightful chars; Psych and Burn Notice have been regulars for a while, so adding a new one couldn't hurt...