There's a lot of talk making all server manual block because manual block enhances gameplay, and so far the only complaint people have against it is that manual block is counter intuitive to new players and may put some people off.
Personally, I agree with both.

Autoblock waters down a one on one fight so badly, that half the time I just get fed up and pull out a throwing weapon and smack him in the head. However, manual block does not feel intuitive for me, where every other control in the game has been extraordinarily natural. People obviously have adapted to Manual Block quiet well as I see some of the better people on the server can block attack after attack after attack with seemingly great ease. So I boiled down my concerns of manual block to the core reason of
why it feels counter-intuitive to me.
Manual block is based on your camera angle.
Personally I like to have a high view overhead view of my character. I use third person mode because first person gives you bad tunnel vision, and in third person mode, having a high view allows me A) Hear enemies location better (I use 5.1 surround sound), B) See people trying to flank me, and C) Admire my old granny hair. The problem with this is that with manual block, this forces me to use the overhead block, even if I'm cognitively trying to do a side block or a thrust block.
As I mentioned earlier, some people seem to have adapted to manual block quiet well, but for me, even after nearly a month of beta testing, manual block still feels clunky and counter-intuitive. I played another beta called Pirates, Viking, and Knights II which had an attack pattern very similar to M&B. However, instead of basing the block pattern on your mouse's X and Y axis, it based it on keyboard directional commands. As an example: to block left you need to strafe right (press d) and hold your right click button. To block right, you strafe left and then hold right click. To block an overhead attack, walk backwards (press "s") and right click. So on and soforth. This still required a lot of skill to master, but it felt very intuitive.
I would like to see an option in the control screen allowing for this kind of manual block mode. This still requires a lot of skill, but would bring the highly attractive intuitive factor to the manual block mode and servers.
Thoughts?