Wieskamp was a junior coming out of college, 6'6", shot 46% from 3 and averaged 1 steal per game. Different types of players and builds, but the appeal would be largely focused around the same characteristic: 3P shooting. (Also, Karaban's blocks kind of came out of nowhere this year, I wonder what spurred that. Wonder if he is being put in different defensive situations. Obviously UConn lost Clingan. I was impressed by Tarris Reed in person, but he definitely doesn't have Clingan's interior presence)
I'll admit I've watching exactly 1 UCONN game this year (the one I was at personally) but I watched him and McNeely both pretty intently. Karaban came off to me as comparatively unathletic (far less so than McNeely) but put in your typical upperclassman leader kind of performance... the kind that usually doesn't translate to NBA success because it is based mostly on game smarts and physical maturity in comparison to everyone else on the court. These aren't bad things, but the reason that upperclassmen (like the ones you mentioned) typically look good their rookie seasons is because they aren't going through the same learning curve as younger rookies who eventually surpass them because they're just better, more skilled athletes.
So, that's what I mean by a "Joe Wieskamp" type pick - a well-shooting upperclassman with limited ceiling. Worth taking a flyer on, but only in the second round for me (but like I said, he'll probably go late first, early second).
If he were 19, I still don't think he'd be a lottery candidate. At that point, you're comparing him against McNeely, who appears significantly quicker and more athletic to me.