Slim_slag
Of all the budget carriers in Europe, I would think Ryanair would be one of the last to make it to equivalence with southwest. Wasn't it just recently, that Southwest took great exception to Ryanair comparing itself to Southwest.
There are many innovative airlines in Europe, good examples are flybe, and AirBerlin. In fact, I stand to be corrected, but I think AirBerlin is becoming very like southwest, much more so than any other European budget carrier.