thanks for the info.
no i do not have to stay with one world. i fly mostly to north america, south america, and a few times a year to asia. and all inside europe and spain.
lufthansa might be a good idea actually. but from what i heard, they charge allot of miles for upgrades, and they don't have anything equivalent to aa's vip coupons....what is a good european program? or do they simply not come close to the US programs?