I'm trying to figure out which airline program would best allow me to collect miles (and perhaps work my way to elite status). I'm based in West Ireland (so either fly out from Shannon, or fly aer arran from Galway to Dublin and then onwards on other airlines). I anticipate having around 8 trips a year to various destinations, including other European cities, Israel, North America, and possibly further.

Any suggestions for which airline programme to choose?
Thanks.