There is already a virtual venue for BMO Field, so you can take a look at what the view would be from every seating area.
http://torontofc.io-media.com/
I have several spots in mind, but am just waiting to hear what the prices will be. I am willing to spend a little more than I did at Skydome, which was first row in the 200 level.
One major change I will make is to sit in the middle of the section instead of on the aisle. I cannot take having to stand to let people in or out during the game. Why can't people stay in their seats to watch a game? I never move out of my seat until half time. Hamilton is even worse, as the amount of traffic is incredible. You really notice it when people keep passing by your seat in and out and blocking your view as well.