Ive used the same glass for 8 yrs. w/ no chips, cracks or breaks. A lot of that depends on how careful and to a lesser extent how strong you are.
SS is best, but quite expensive.
Glass is great - inert, no O2 issues and easy to clean.
Plastic is good - plastic vessels will eventually have to be replaced, can harbor bacteria in microscopic scratches and are O2 permeable.
For me, glass wins hands down.
The traces of oxygen that penetrate BetterBottle PET carboys are incredibly difficult to measure and insignificant when compared with the amounts of oxygen diffusing through, or leaking past, traditional, liquid-filled air locks, traditional rubber stoppers (especially silicone stoppers), and most common types of flexible tubing.
Better Bottles, in my opinion. A good soak in OxyClean Free negates the need to use a carboy brush (I don't even own a brush).
There's also this (granted, it's from Better Bottle's website, but they cite research):
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