Hmm.. so there are many Vanitygen out there?
Technically, I think there's only one - but there are many so-called 'forks' of it. You can see an overview map of the direct forks at github: https://github.com/samr7/vanitygen/networkMost of them will just be people who forked the code and then didn't actually do anything with it, or only used it to make code changes that would then get merged back into the original code. Others will have minor tweaks for a specific altcoin. A few are more substantial.
One of the more impactful forks was the lifeboat version which improved performance on AMD graphics cards and added compressed key support.
Which one is the best? I mean.. in term of commands?
I honestly wouldn't know as I haven't looked at all of them - if I get bored I might do that at some point - but as I mentioned, I'd just use Kangaderoo's code. If nothing else, he's recently been poking at it, while certainly the official code base has been abandoned ( samr7 up and disappeared )I also find a way to "overclock" my computer from ~350 Kkey/s to 400 Kkey/s. Anyone wanna know the trick?
Of course everybody does - though it sounds like you're using the CPU version of vanitygen? Why not use the GPU (OpenCL) version, which is much, much faster?(one reason might be because it won't work on your card)
