Ryanair and Wizz both operate to airports with constant airport slots, ATC slots, congestion, holdings, extended taxi times, extended ground times, slow handling agents, manana attitude etc.(Fiumicino, Lisbon, Malpensa, Madrid, Barcelona, Frankfurt, Berlin, Hamburg, Copenhagen, Keflavik, Oslo, Tel-Aviv, Moscow etc, just to name a few) but LGW is a unique place in terms of having all these problems at the same time.