I agree that all jailbreaks are equal. I've used Sn0wbreeze, RedSn0w and Absinthe in the last three months on about half a dozen iPhones. They all work perfectly well (except downgrading iPad Baseband with RedSn0w which was certainly the worst decision I ever made), and I don't see how there could be any difference ONCE the jailbreak has taken effect : all 5.1.1 untethered jailbreaks install Rocky Raccoon, just injecting it differently. FWII...
The existence of so many tools is not because people thought another jailbreak could be "better", but because of options they give that others don't, and of course the systems they're compatible with. Can't use Sn0wbreeze on Mac, you have to use PWNage Tool or something. Sn0wbreeze is cool when you need to hacktivate, it allows for custom installation and even changing root partition size - which the OP could find useful, perhaps, in regard of what he's on at the moment. And then RedSn0w is great too, it just allows to do pretty much anything a jailbroken user could need to do depending on the device he's using, and the situation he's facing. And then Absinthe, which doesn't give any option, but allows for a simple jailbreak, and also to jailbreak devices (A5) the other programs can't do.
I think that, if I'd have to really make a statement on those three tools, I'd say any one tool that doesn't need PWN DFU and restoring with iTunes (and all those errors it can sometimes generate) is better. For the future, those are the tools that'll stay, seeing that all the newer devices can't be PWN and restored with iTunes, and I don't think it will become easier for devs to overcome this obstacle. But as long as there will be 3GS and 4 and iPod touch jailbreakers out there, the other tools will retain their purpose, and IF an exploit in low level DFU is found for A5 + chips, they will remain just as widely used.