I absolutely loved my time in passenger services, and it seems that a lot of people walk away with the same impression, although many are put off by the long hours, shift work & having abuse hailed on you all day, but its simply something you have to learn to expect. The only thing I didn't like about my time was the unpredictability of whether you'll be kept on by the end of the season, and as I wasn't, I'm currently changing jobs to cabin crew.
From my experience, Servisair are a good stopgap, but probably not the best company to make a career out of. As a team you work well together with some amazingly friendly & vibrant young people, but pressure from long-in-the-tooth supervisors & incompetent managers who want to shift the blame from their miscomings can create a lot of friction, as can the ridiculous hours & split-shifts, all for pretty dire pay. If you like a challenge, don't mind getting schtick from people further up the ladder & are good with early mornings, then definately check Servisair out.
Menzies appears to be the big "up-and-comer" at EMA having successfully been operating ramp procedures for WW for 3 years now, and also handling both front-of-house & ramp for T3 & TCX. Staff seem to be a close-knit bunch with good pay & a stable roster, although a fairly seasonal company due to the TCX contract. A lot of rumours circulating through EMA that EZY are unhappy with the Servisair contract at EMA (apparently management were at the airport today), and a move to Menzies similar to other stations may be planned for S06.
Both companies will begin to advertise for new staff just after Christmas (no doubt SG before with the new FR base opening on the second week of Feb 06) for positions across the company.