Schwalbe nn front, rr rear, used for about 12 consecutive seasons now, end of thread.

Rolling on ignitors at the moment as a "winter" tyre down here in Aus; can see my lazy self leaving them on for a fair while beyond winter though.

Nobby Nick from Schwalbe would be great too though – just can't afford them currently 🙁

'kenda blue groove' up front and 'schwalbe nobby nic' on rear…..

Yeah mendips is tricky, Winter slop, spring dust, summer slop, autumn dust.

I'd say Bonty mudx when it's sticky, Kenda Blue Groove (front) Small Black 8 rear when it's dry.

Minion on the front and Advantage on the rear. I've had good results going ghetto with these but i'm now on UST on both bikes.

Now on Rubber Queen UST (havn't ridden these yet though!) on the hardtail and Ignitor/Crossmark LUST on the full-sus.

I run a 2.35 high roller SPC kevlar on the front and 2.35 high roller semi slick (they only do them in SPC steel) rear most of the time, got 2.1 swampthings for the winter.

2.4 hollyroller for dry days on rocky terrain (peaks in summer).

Maxxis 2.35 Ardent on the rear & 2.35 Minion DHR on the Front (washes out less than the Minion DHF).

NN front and a Larsen on the back, normal tyres run tubeless.

Which 3 seasons? Spring-Summer-Autumn, Autumn-Winter-Spring or given the weather the past few years 'Summer'-Autumn-Winter?

"Maxxis ignitor, Minion and the bonty XR4"
Ignitors and Minions (XR4's kind of sitting in the middle) are very different tyres
A minion upfront, with an ignitor rear might make for a reasonable setup (if lacking a bit in pedalling traction) in damper conditions

"Nevegals are completely pointless on Mendip in the winter – may as well have a slick .. not so great on the SS I use due to the torque – they seem to spin"
Are you running them both 'ramps first', ie the 'normal' way round
If so then you're relying on the ramps for pedalling traction, hence the slipping under pedalling, try running them the other way round, they seem to brake alright IME but the pedalling traction is better

"I get on better with tyres with fewer, but larger knobs, things like high roller .. "
High Rollers are similar to nevegals with ramped tread (if anything a greater proportion of the tread is ramped?)

High Roller 2.35" 60a fold. front, then maybe Michelin Dry2 2.15" (fold.) on the rear is my current thinking for an 'all round' summerish combo atm.

Though partly because I haven't tried them, and Bontrager ACX's have been discontinued (and the XR4s are very heavy) I'm tempted to try a Specialized Purgatory instead of high rollers for damper riding with some 'proper' ups

Maxxis ardent on the front, maxxis advantage on the back – have been great so far.

Maxxis AdVantage, Maxxis HR, Bonty, Geax something, Tioga XC Factory 1.95, Panaracer Fire 2.1.
Loads of choice, every one of them can be praised or cursed.