MAN777 is pretty much right. Now BA has thrown the towel in, all Lo Co ops should move to T3. All longhaul & full service / legacy scheduled operators (DLH,SAS etc) moved to T2. Leaving T1 for charter & pseudo scheduled operators MON,MYT,TOM etc).
Mind you T2 is in desperate need of gate seats with cushions as the present seating has disintergrated.
Sell Humberside & Bournemouth & raise some cash, so that T1 can be virtually demolished & rebuilt. It fails on every count as a modern terminal. Falling apart, leaking, creaking, umpteen different levels & a nightmare obsticle course, how long can you go on patching up a 1960s building?