I have Muck boot Tay Sport wellies and these are very warm, but lethal (slippery) on hard wet ground ( cleaning the kennels ). Also a lot less comfortable then Aigle Parcours wellies. I have Aigle Parcours and Aigle Parcours Neoprene. Aigle is just much more comfortable to walk all day in them and very nice thight fitting on the ankle and leg. The Le Chameau Vierzon(ord) has stronger rubber but is wider fitting around the ankle, wich I dont like. As said before, it will be personal on the type of leg/foot you have.
The Vierzon(ord) top boot in strenght and comfort but to wide for me. The Aigle Parcours stays my n° 1 anytime. The most comfortable boot I ever used.