Well going from your posting history, I take it you won’t take “the buy a Hard tail” suggestion well, & we’ll gloss over the whole £2K for a ‘beginners’ bike…
[Personnally for me neither, but] They both have good reviews and a following on here, so neither will be particularly bad.
140mm is a little overkill for beginners trails/midlands, I believe 120mm is an almost perfect level of travel for most ppl/the UK.
As for Winter, well I’ve always had single pivot full sussers and never had issues due to winter, this may not be so true when you add in a number of pivots as per the Trek/Lapierre
If were going to talk value wise, then you have to take a look at the Canyon XC 9.0 very similar to the Trek but much better kitted out, and no silly pure XC angles (or take a look @ their AM range for ‘slacker’ angles). In fact you could buy a Canyon XC 8.0 or 7.0 and still have a better kitted bike, lots of ppl raving about em… same as the Zesty & Ex 8 really
Get a test ride & decide for yourself, try the Lapierre and Trek, then order a Canyon to test/keep or return if it ain’t up to the EX/Zesty standard?
Swinnertons @ Cannock have a 18.5 sized Trek to demo for a start, and Lapierre have a number of midlands dealer one must be able to help with a demo.