This isn’t just an opinion. Saga has won tons of awards, including the most prestigious comics award, The Eisner. And not just one of them. Eight, including Best New Series, Best Writer, Best inker/Penciller....you know, the important things. It’s also won a Hugo, some Harvey’s, and a whole bunch of positive buzz since it started.
Saga is a whole lot of things. A space opera, a fantasy epic, a comedy, an amazing look into people and fantasy...pretty much if you like nerdy stuff, you’re gonna find something you like.