Pollster's House Effects
This from Survation's CEO Damian Lyons-Lowe on the "house effect" from various pollsters is worth noting; "Labour leads everywhere, by anything from 3 to 8 points. Second place depends on whose poll you read: Opinium, Deltapoll & ourselves have Reform. Ipsos, YouGov, MiC and FON have the Tories. Pooled, Conservatives & Reform sit level on 22. Widest spreads are Labour (26–32) & Greens (7–13); everyone else within 4 points."
The range on the Greens is particularly noticeable.