SDRL management pays a fat dividend and is proshareholder. RIG may pay a puny dividend eventually. SDRL has new rigs, RIG has lots of old rigs. SDRL is small and nimble, moving and shaking, RIG is pretty ho hum. SDRL could be acquired, no chance for RIG.
Oh, SDRL up like 250% in the last two years, versus RIG.....there is no comparison, just buy SDRL.