See now Battlestar and Bab 5 I never got either. Weird how tastes differ.
By Battlestar I do mean the remake by the way. But hey ho, it'd be dull if we all liked the same thing. My very favourite series was Farscape, but my Mrs thought it dull and cliched so we didn't together get past the first couple of warm up episodes. I got into it having first seen a couple of episodes in the middle and thought "Wow! wtf is this" so bought the box set. I never really got Firefly (cowboys in space) but did watch it all. It suffered by being too slow to bring out the epic back story, and planet-of-the-week was getting a but dull. The back story proper was told in the (quite good) film Serenity
The best ones we've seen recently are Dark Matter (sadly cancelled, but still well worth watching) and Timeless - a time travel one set in the present (so to speak). I also love the Expanse, but Mrs PP got fed up with the mumblecore dialogue and to be fair the mostly unsympathetic characters - still the most amazing looking series eve, and it is well written / ploted/ acted.
And for utter weirdness how about Lexx? A bit like Red Dwarf but a lot more horror (sometimes rather revolting) elements and less funny, not that it takes itself seriously. The main flaw is again unsympathetic characters but it will likely be the oddest thing you've watched and has much to recommend it.