I know it is not the end all be all, but guys like Gonzo, KA, KA2, Curtis Blair just willed their teams to NCAA appearance. That counts, BIG TIME, in my book.
This team also though has 3 guys who will likely end up with their numbers retired (and possibly all 3 could end up top 10 in career scoring) so I'm not sure making the tourney could be considered Grant carrying the team like any of them may have done (but I know KA had another future NBA player on that team with him).
TJ is 8th in career scoring for Richmond in only 3 seasons! Shawndre Jones (another recent great) had fewer points in 30 more games! Hell Grant is catching TJ (right now he's 175 points shy) and is currently 15th all time and just passed Kevin Anderson in 34 fewer games. But even with being 175 points shy of TJ he has played in one more career game than TJ did.
Sherod is around 31st in career scoring and Gilyard is around 28th.
Amazing thing about Grant is he joined TJ as the school's only other member of the 500 point, 200 rebound, and 100 assist club. TJ also won A10 player of the year and recorded the school's only triple-double. With how things are going now I would imagine Grant would be on the preseason shortlist for A10 player of the year (only other player to win that award is Kevin Anderson). It is difficult to win those awards, even as good as Gilyard has been he hasn't won one. The only spider to win was Tony Dobbins (who did it twice - man I wish I would have been able to watch him play).
TJ has the 8th most points in a single season, 10th most rebounds in a season, and 2nd most assists in a season! Those guys were all very good but I firmly believe TJ is the best big man we have ever had and by a wide margin (which says a lot given the others we have had).
Not to bring any disrespect to any of the other guys you mentioned, they were obviously great. I also kind of got lost in my point in this post and was looking up stats and just figured they were interesting so I apologize for being all over the place.