ahh.. the joys...
i've always used external drives.. and, they too, last a couple/few years before they poop out. however, i've had great luck with my latest, which is a G-Drive...
i've had a 2nd internal in my machine for years that's always been solid, but it's only for my iTunes library, so maybe it doesn't get the workout that an audio recording drive would. that drive is... hmm.. maybe a western digital.. i can't seem to find info on what it is.
basically, all hard drives will fail eventually.. there's no magic brand.. but, if you're having bad luck with the barracuda's, i'd move on.
probably the best you can do for audio would be to get a Glyph rackmount. it's all basically the same inside, but Glyph is a great company and have excellent support. and, for what it's worth, their drives are "optimized" for audio applications...