As a huge Gators Fan I have watched every game Spikes has played and I also have pondered the possibility drafting him in the 3rd and moving Channing to OLB as Spikes value has fallen. What most people do not see is that he was just as important to the team and their 2 titles as Tim Tebow was. Spikes has all of the same leadership qualities and play recognition but on the D side of the ball. Plain and simple he is a beast.....just ask Knowshon Moreno and Mathew Stafford. As for his 40 time I am still scratching my head, he is alot faster than that. Another thought I have had would be to draft Joe Haden @ #12 (if available) and move Smith back to FS. I know many are looking to Williams or Morgan @ #12 and I would be satisfied with either, however completing the secondary would eliminate all of the over the top plays we gave up last year. I know I sound like a Gator homer but Haden makes an imediate impact as a shutdown cover corner wherever he lands (I am thinking the Browns).
You are correct on everything you said about Spikes. However, his stock is falling fast. I would take him with our 4th round pick and not think twice about it.
As far as moving Smith - he's never played safety. Just wide receiver and cornerback. You don't want to put someone who is already talented and succeeding at one position in limbo at another UNLESS you try it out and he excels right away. That being said, a Haden/Vontae tandem would be insane and would technically be better than Vontae/Smith. But we already have our corners at this point.