First ballot hall of famer? Probably not, the writers took a couple years to elect Ryno and he's a pretty comparable player I think.
Kent: 9537 PA, 8498 AB, 123 OPS+, 377 HR
Sandberg: 9282 PA, 8385 AB, 114 OPS+, 282 HR
OK, maybe not as similar as I thought, though don't forget Sandberg was by most accounts an outstanding defensive 2B while Kent was passable for the most part. Also Sanberg had a good reputation with others in the game while most seem to think Kent is simply an *******.
I think Roberto Alomar's polling next year will be an interesting barometer, the HoF can be very prickly wrt 2B.