Main disagreements seem to be:
Physical movepool and boosters
Bulk Up.
No. I'd rather have Curse. At least with Curse everything will outrun Woodman.
Curse
Maybe...probably not. I find Curse a better option if compared to Bulk Up, but it is still quite dangerous. Finding a pokemon uncapable of stopping him from cursing isn't hard, and he wasn't supposed to outrun anything in order to be effective anyway.
Swords Dance
No. Being able to use 2 120BP attacks with no drawbacks is powerful enough. I am all for Howl, though.
Dragon Dance
No. Get what I've said above and add the ability to actually outrun possible threats. Sure, it will probably need a couple DDs before actually having a chance of sweeping a team, but, unlike Gyarados, he doesn't have 4x weakness, and only maybe a very strong Stone Edge can pose a threat to it. I don't have the exact numbers, so forgive me if I exagerated, but I find this option quite...uh...scary.
- Brick Break
It isn't all that necessary, IMO. Neutral STABed Wood Hammer/Flare Blitz deals more damage than a SE Brick Break, STABed Flare Blitz takes care of metal types except for Heatran and Wood Hammer takes care of Tyranitar. Unless you really feel the need to counter Heatran, I don't find this move necessary.
- Rock Slide
read above. Also, as some people have mentioned, it gives woodman a good move to use against fire pokes...maybe too good, and that isn't a good thing.
- Wood Hammer and/or Flare Blitz
Both. I don't get why people want to make this defensive poke even more defensive. The best thing about this typing are the STAB moves, and the ability to use both Flare Blitz and Wood Hammer is everything you will need to make a decent physical attacking move. It can lose it's stat up moves and I won't mind, but I really think it should keep both attacks and maintain it's nice type coverage.
Utility
Stun Spore
No. Leech Seed/Burn is annoyance enough, really. Also, a speed dropping move isn't a very good option, since it would remove one of Woodman's biggest weakness.
Reflect/Light Screen
Probably not. I don't know...Woodman is already bulky enough as is and the only reason I wouldn't mind giving it Light Screen/Reflect was to make it a better support poke. But I guess burn is close enough.
Synthesis
Giving this poke healing attacks is veeery tricky, IMO. On one side hail and sandstorm are so common that it will end up healing 1/3 more often than you may think....but also if you manage to get a sunny day going, you will get a pretty much unstoppable poke. In the end I would end up voting yes for it, but I am not really sure.
Special Attacks
Zap Cannon
No. Well, I absolutely hate luck-based moves..and nothing yells more that than a move with 50% chance of dealing insane damage AND paralysing.
Charge Beam
Why not? Considering how I am all for Growth, giving this a less reliable yet damaging version of it seems fine by me. Also, the 50 power will make sure it doesn't hit anything harder than flamethrower or energy ball would hit.
Ancientpower
I don't have problems with this move, TBH. If you feel like using Hidden Power, Ancientpower AND a STAB move at the same time and lose some precious slots for support moves, be my guest. Either way, I don't think it is powerful enough to deal insane damage with this move, so I really don't mind.
Leaf Storm
Yes. This thing will be already begging for move slots with the support moves, the possible rest and the offensive moves, so I don't mind giving it Leaf Storm to go with overheat, really. If you feel like using that type coverage fire/grass gives you and use up two slots just for that, be my guest.