Yeah I don't really care for Sakura either, she's ok...and I'll definitely play her route...but NO one beats Rin. NO ONE!
As for the "rofl" moments, let me try to explain them a bit.
They do create a sort of LOL moment, but when you look in the context of what's happening the lines actually make perfect sense. Shirou is a rather peculair person, in the sense he doesn't really care much about himself. In that way he doesn't care what's happening to him, so long as what he's doing helps someone else. This puts him at great risk, and without any magic ability...he's beaten up a lot. By disturbing the fight between Lancer and Archer he's basically killed once there as well, but still does it. So basically:
The first screen shot: Is his realization that he's pushing himself too hard, with no useful skill besides projection to fall back on, and therefore incapable of recovering from wounds. Well we know he CAN recover, due to...you know, but yeah no need to say that.
The second: Rin is trying to drill it in for him, because despite realizing it...well he's a dunce and can't seem to change his ways.
I just felt the need to say that, since Nasu writes so wonderfully enough to actually make those lines work when you look at it.
On another note...anyone who likes the FSN music, I highly recommend the White Avalon album. It's got a ton of remixed tracks, and many of them done absolutely beautifully.