ive got an acryl and i find it hits harder thaqn my buddy's glass. but mine is also a 2 footer and his is broken... either way, theyre pretty much the same, one wont get you higher than the other if theyre the exact same minus the material. and one isnt healthier than the other, the bowl itslef isnt plastic, its metal. the only difference is taste between metal and weed or just weed...