My hunch from last year's results is that this course favors climbers more than most time trials, but is still reasonably favorable to the traditional chronomen. It's also March, not July. So the best way to handicap this race is to pick out guys who did well on Montelupone (on-form climbers) who are known to run well against the watch. That'd be Lovkvist, Nibali, Hesjedal, Kloden, Basso and Gerdemann, in roughly that order.
But it's March, so who knows. In any case, this stage should decide the overall, so enjoy!
Oh, and where to watch: GazzettaTV!