The Hulk had a separate queue option for the front row when I was there a year or so ago. For the other coasters, I think you have to request the front (or other) row at the head of the regular queue and perhaps wait additional time in the "stall" for that row.I've not been to Orlando for nearly 20 years - back then you could queue extra for the front or back of The Hulk and other coasters at all the parks. Do any of them still have this option or has it been stopped?
Hulk still has a front row waiting line once you are through the queue (at the top of the stairs past the animation of the test subjects). It's not a separate queue you enter from the outside of the building.