How can you possibly choose? Ok sure, Leroy Loggins is probably everyone's #1 choice and I would say that Mark Davis, James Crawford and Ricky Grace are right up there also but look at the imports we've had in the NBL and how can you choose a top 5?
You could choose from a whole bunch of guys: Mark Davis, Leroy Loggins, Cal Bruton, James Crawford, Scott Fisher, Darnell Mee, Kevin Brooks, Tiny Pinder, Lenard Copeland, Ricky Grace, Robert Rose, Ron Radliff, Willie Simmons, Bill Jones, Al Green, Bruce Bolden, Derek Rucker, Darryl McDonald, Rocky Smith.....and countless others that I've missed, including Steve Carfino who despite his commentary was a pretty good player back in the 80s.
Of course, we've had some real dud imports too. I wonder what a top 5 import flop list would read like? I know he wasn't a flop as a player because he could play.....but I'd love to start that list with Julius Hodge.