Maybe not the absolute pinnacle, IMHO, but it's certainly in the top 5 or 10% for me as well.
Of course, personal taste and preference play a big part in what anyone believes to be a great series. Plenty of good ones about, but not so many truly great ones, and even fewer spectacularly great. I consider Breaking Bad to be the only one I've seen so far which was spectacularly great, nothing else comes close (but then again there are possibly hundreds I've never seen).
Other great ones, only imo obviously, but none anywhere near the calibre of breaking bad, are the likes of game of thrones, house of cards, the sopranos, peaky blinders, dexter, the wire, better call Saul, banshee, Yellowstone, sons of anarchy, prison break, and maybe a handful of others I've forgotten about.
By the way, have you seen the second Dexter series, new blood I think it's called, the one that follows on from where he supposedly rode off head first into the tidal wave at the end of the original series?