Coastkid, what rims you on?
70-80mm or wider (100 is huge) makes all the difference to tyre pressures as I'm sure you know. Marked difference between even 50mm rim and 70mm in how the bike steers at a given pressure.
I can run 20psi in my werwolf on a 35mm Gordo rim tubed no problem unless very rock then only 22-23psi.
I really fancy a fatbike, Fatbike, Wildfire, 9:Zero:7, now Salsa etc.
Alloy seems good value although Wildfire steel ok, alloy stiffness not an issue with huge tyres, although imam a bit allergic to it!