There really isn't a best. Seagate, WD, Toshiba Hitachi all are decent, all have their own peculiarities etc. They all spin at @the same 7200rpm ± and all are subject to the same wear and tear as any hdd is. You can pay extra for a WD Black over a WD Blue, but what you get is a longer warranty and the probability that the Black will last longer before failing. But it's still guaranteed to fail sometime in the future, all hdds do.
Most consumer hdds are under $100 for 2Tb, pick one.