^I think that question would be hard to answer without seeing how this new installment turns out first. It's only 2 episodes in, so it's hard to say for sure. That being said, I don't think you could go wrong watching the original series. It's got the top spot on my favorite anime list. Characters, story development, settings, premise, were all handled well in the original.
Plus would probably have to factor in how patient of a person you are, i.e. would it bother you to wait every week for a new episode, or would you rather marathon the series.
Eh, I guess I really didn't give you a concrete answer in all that ranting, sorry