Whats longer Z.O.E. or Onimusha

Just wanted to know seeing i want to buy Z.O.E but not if its shorter than Onimusha since i conquered Onimusha in 5:30 hours.  Also are there any hard puzzles in Z.O.E that might make the game longer if you dont use a strategy guide.  That makes the game funner for me and the puzzles in Onimusha werent that hard for me, not even the water puzzle, took me a couple of tries but i finally got it.  If you could tell me this stuff that would be a big help.  Oh yah are the puzzles harder than onimusha.

well i don\'t remember there being any puzzles in ZOE

but i completed ZOE in 4 1/2 hours and i completed Onimusha in 3 1/2 hours on my first try

I think that ZOE was cool - but the replay value is not that great IMO