Like this Visit Europe one?
http://www.oneworld.com/ow/air-trave...s/visit-europe

(It's not that good value - for UK originating flights, booking on BA website directly seems cheaper for many of the flights, as they currently have the sale on, until 27 January)

I don't generally bother with low cost carriers unless there is a really good reason for it, such as more suitable schedule or flights to where legacy carriers do not go to. I have never flown on Ryanair and I never will (this is one promise I made to myself - I'd go a long way round to avoid them), although I find easyJet reasonably OK.