So here's my situation. I've got an AMEX Gold, Chase Sapphire Pref, and AAdvantage MC. In October, I leave for Sydney and begin a 2 year+ backpacking journey. I generally plan on using the Chase card when I need to use a cc overseas, with no foreign transaction fees. I'm looking for a recommendation for an all around good rewards card (even if its just the best signup bonus). I'd like to keep building up as many points as possible before I go. I have excellent credit so I don't mind opening a few cards.

In your opinion, what are the best current options?

Thanks all!