YMMV really. some people are really prone to dropping bottles while i've never even come close with any combination. it probably depends on the surface of your bottle, some are grippier than others.
i'm using elite fly bottles and the stupid cheap (1.80 for 2) red plastic cages at 36g/pc are fantastic. they come out very easily when i grab them but don't rattle or come loose whatsoever. as long as you get a pair that isn't metal and that has a hook at the 480ml (i think) mark you should be good to go