I think I would rather be Hamilton (if he has 5+ laps more fuel than Alonso) than Alonso. Hamilton with a lighter car for those 5 laps and if he gets a bit of clear air will make up 2 - 3 secs a lap over Alonso with the heavier car after pitting. Then pitting later he *may* come out in front of him. Kimi has done this a few times and Schumi did it quite often. Running longer is always the winner.
I think the main difference with Schumi compared to Kimi is that Schumi managed to hold back a bit before the pitstops, then as soon as he had to throw in a few extremely quick laps, he managed to consistently and made up the time lost in carrying the extra fuel.
It seemed to be what set him apart from everyone else at that time, Alonso and Kimi have shown flashes of this but havent managed to do it consistently