Firstly, thanks for the opportunity to play such a good game!
I decided to play as the knight, as I felt he would more than likely be an 'all round fighter', he had speed as well as being able to deliver some hard hitting blows. Timing is really the key in this game, by watching which direction the opponents weapon is coming from. When faced with more than one opponent at once, attackiing and defending seems to work quite well, although its quite easy to get stuck near the edge of a bridge and get trapped and therefore, attacked from multiple angles.
My worry at the beginning of the game was that it would become repetitive, and although during the 1vs1, 2vs2 and 4vs4 matches available in the alpha it would look like this might occur, it was strangely addictive and I was enjoying trying to beat my opponents. The ability to resurrect a fallen player is a nice touch, I have to admit I was brought back to life a number of times.
I'm sure if this game will be released with a campaign mode in addition to the online play but I assume it will. I suspect this will be to teach players different useful techniques in order to improve when playing online.
I would like to see the selected characters fighting hordes of soldiers too, similar to the practice/tutorial mode at the start of the game.
I'm certainly looking forward to the final release!