Firstly, Hey Jeff! Hows it going? I've been looking forward to the day where i'm actually free a tues night lol but we might be moving to the Quarry when I graduate and if that's the case ill be there every week 
Anyways, I think you should keep the 3 tier comp system. You can't please everyone. With that Said, I feel as if fewer people would be unhappy if you kept it then if you went to a 2 tier.
I think increasing the pt size to 2500 is a good idea.
Raise the squad cap from 50 to 60. But keep pt cap for any model or unit at 500pts.
And lastly, be nicer to my wood elves
especially if I bring an all elf winter fluffed filled army
But in all I will add that Buckeye Battles is the best tournament series i've ever been apart of and im sure you'll do a great job continuing such greatness.....no pressure 
Going to 2 bands isnt just pleasing players, as there will still be a knot at the dividing line that are unhappy. For us running it, it makes more sense for better match ups and avoiding you guys playing your own club or vs 3 dwarfs on the same day. Bigger band means more variety. Also less likely for a winner vs a loser round 2 or 3.
I do believe 8th has gone a LONG way in evening up the power for many army builds. I also believe there are some books/builds that can take advantage of 8th in ways not meant to be as they were 7th ed books, so a need for band 1. But as to band 3 in the past, blocks of orcs and gobbos were band 3. 8th edition has made blocks of t4 guys with parry saves or frenzy (possibly horded) much better, so while OG might not be band 1, they certainly are better than in the basement. Ogres also rose out of band 3 almost in any build. WE armies are odd because they CAN do some things well still. I think they just are built differently to be effective. Probably not band 1 in any form, but probably not band 3 in most tourney builds. Dwarfs got better in 8th with horde and GWs, artillery, so they are generally out of band 3. TK got a new book and while not great, they have some really nice spells, abilities, and options that most tourny players will bring a solid band 2 list.
So whats left in band 3? Mostly just players that bring
bad lists. If a list gets a certain score, we will warn them that they might want to make some more competitive changes.
I dont have an issue raising the unit size up to 60 or 80 for that matter. But I think capping at 500 is still a good idea.
As to your WE winter themed? Well just because something is painted white, doesnt make it band 3!
