Arc length?

[hoeru]

Was Oda rushing with the war saga?

Well. "It depends". For me, it felt rushed as I expected to see more of Whitebeard's commanders and their battles. I'm still disappointed that Oda shortened or off-paneled Jozu vs. Aokiji, Marco vs. Kizaru, and Vista vs. Mihawk. Others may see this different though.

By the way, what length do you think the current arc (Punk Hazard) will have?

IMHO it's to last until Nov/Dec Oct/Nov 2012 which make up around 10-15 chapters, and I hope Oda then goes to a "Wani Country in Spring time" arc. Blooming cherry trees could be a great opportunity for some manly Sanji moments.