Really all depends what tickles your fancy! A few people I know have gone on cruises for their honeymoon, but it wasn't our cup of tea at all, I'd be rattling to get off after a week! You'll probably need to sit down with H2B and work out where you want to go and where you don't...from there it'll all depend on what you can get for your budget.
We're heading to the States and wanted to do three different locations; we booked it through American Holidays - Trailfinders were recommended by a lot of people but I wasn't overly impressed with them when we asked them to quote. But someone I know went to Thailand, Cambodia & Vietnam for their honeymoon through Trailfinders and couldn't recommend them enough. They might be able to make some suggestions for you based on the places that you want to go to, weather etc.