These clashes between local races are annoying, but you've gotta love the fact that there are enough of us lunatics out there to regularly fill the roster for both.
Gone for Leeds over Sheffield. I've done Leeds before and would like a crack at Sheffield, but I've got a couple of mates doing Leeds this year so that swung it for me.
When I did this last time I must say I didn't have any particular issues with the bigger hills, but the almost imperceptible upwards drag over the last mile or so really hurt.
New PB last week at the Brass Monkey - flat as a hedgehog on the M6. Not going to beat that in Leeds, but it's tempting to see how close I can get.