You're welcome to your opinion, but this is actually provable/testable. I was talking about macroing it to FS. Download simcraft and compare it yourself if you don't believe me. Or just continue using whatever you want, the difference between all the options is pretty small.
Heres some pros and cons for you:
Runic Corruption - Requires no management, worst DPS (remember we could be talking about 1% here).
RE-Needs to be gamed, gaming is basically holding one UH rune at all times so that you always refresh F or D runes. More or less even with BT.
BT-Offers the most flexibility of the 3, if you want to be a baller then this might be the one for you. However it's also the easiest to mess up, mess up frequently and it's easily the worst of the 3 DPS wise. It's also likely you will have to modify your UI so you can easily track your stacks.
There is no wrong decision here, the one you play the best or enjoy the most is the right choice for you. Unmacroed BT will offer you the most room for growth as a player but if your raiding then please keep in mind that the guy who executes mechanics properly and doesn't diein the fire is infinitely more useful than the guy who burns your combat res every pull because he was too focused micro managing a perfect rotation.
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I'm personally using blood tap macroed behind fs, simply because the manual version provides so many possible errors by reaction time, forgetting it if its getting nasty in the boss fight (while this is simply a matter of practice) and simply wasting runereg by choosing the wrong point in time to use the charges.
We're also gcd locked if we include ams soaking, saving runes for whatever reason might only provide a optimization what abilities you use in the important time frame, you don't put your rune hole form one to another point, you trade a rune hole against optimizing your damage at one point, which can even be overall a dps loss, and considering how it can damage your rune "flow" and possibly waste even bt stacks to accomplish your goal of saving runes. Plague leech and empower rune weapon are probably the better deal to optimize dmg when quick burst is needed.
Even a macroed blood tap is better than the other 2, simply because the procs are death runes and you can't waste procs as easily as with RE for example.
Especially Frost is a spec with very constant dmg where you can use a constant rune flow very good, frost dw and 2h alike.
Humans love to hate. They neither have to think nor to understand to hate something or someone and still they find a cause and solution for their problems.