Been roughly looking around myself as I need a couple of new pairs, I'm a long distance/multi day hiker rather than "a 20 mins up a hill and home for tea and medals" chap
so I need comfort, smell resistant, lightweight, quick drying etc
ATM I prefer my ExOfficio give & go boxers, they are ideal and I might just get a couple more pairs, but these days there's a lot more choice about.
I also have two pairs of paramo (cambia I think they're called) one short leg and one longer, they were great for a start but i think the elastic has gone in both pairs, they seem fine, but when on with breeks and walking they start working there way down and quickly become very uncomfortable, not to impressed as they havent had a lot of use tbh, so I need to replace them both.
I like Merino tops and socks, but there's not a chance I'm having warm itchy wool round my nether regions
plus it's not the best for drying and quite delicate for wild washing.