That's how I feel Virtuoso. If Matt puts in some great performances over that last weekend he should win by rights, but you can't discount him doing something dull/ cheesy/ not strong enough etc, and Saara doing something really powerful with perfect songs and absolutely nailing it, and then she could possibly do it.
It's down to song choices I reckon, whereas in previous years the last couple of weeks hasn't affected who's going to win because the eventual winner has built-up a 60/70% lead by then. I mean, one year the winner had a pretty duff Final through illness didn't they (was it Ben, not singing well on the Saturday night?), but they still won it by miles.
It just goes to show that there hasn't been any standout, really amazing singers this time around. Matt can sing and works the stage well, but ultimately he's the strongest of a relatively mediocre bunch, and in other years he'd have been pegged for 2nd or 3rd even.