Obvious Gearslutz answer: Save up and get both!!!
I have a voyager and as phat as it is, it doesn't have alot of individuality IMO. I'm sure others will disagree with me though..
I recently bought a Roland SH-2 (also 3 Oscillators) and that things is the goods!
Has a lovely warm sound which I actually prefer over the Voyagers..
They both have their place though.