The 5 needs to be ridden hard IMHO if you don’t you’ll never appreciate just how much fun and capable it is, it’ll climb fine but really reward you when you point it downwards and let it go, a stiff uncomplicated rear end will keep the rear end in place and will reduce you to a grinning fool on fast swooping singletrack….
No experience on the trek but expect lots of in house kit and a ‘just does it feel’ from what i’ve heard from mates it’ll feel great on the ups and downs at whatever rate you’re pushing it but there still maybe bearing issues like treks have been well known for.
Also worth a look is the meta 5.5. and marin 140’s.
There’s many bikes out there now in the 5.5 travel guise and it’s really not a case of picking the one with the best review or what your mates say are good,.
Book some demo days, try out many, ideally on your local trails and see what feels right for YOU.
BTW i had a five and changed it for a chameleon and did my ass thank me? hell yeah cause now it’s a ss i don’t have to sit on it…..
get a five, you’ll love it!