If you don't have a classic controller, then get one. They work great and make games for any old-school system feel like they play better than they did 10-20 years ago. I'd even go so far as to say that gamecube games would play better on a classic controller if you could do it. I would recommend buying both games, but if you have to choose one then get ocarina of time.
I'm not a fanboy, I just don't enjoy dual analog control. It's d-pad or wii-mote for me.
the conduit has changed the way wii play games. 
I know. I'm sick of the puns too.







