Definitely stick towards the middle (I think those E seats are on the side, correct?). Otherwise, I can't really help as I have only seen it from the sides.
I would jump on those H 10-12 row. They are pretty much perfect seats.
I like this show from the orchestra because the actors use the aisles and I like to see what's going on....which you can do better when sitting IN the orchestra. The mezz seats are good too but again would not be my personal preference (but not a bad choice).
And H is close enough to get a real great view of the show, very close and you are fairly centered as well. The 24-26 seats are not bad (Great for actor expressions, etc) but you are going to miss some of the scenery and side elements. If this was not a first viewing, I might suggest those.
I agree, H 10-12 in the Orchestra are perfect (I have sat one seat over and it was fantastic). You'll have a great view of the stage and the action going on in the aisles!