Arrrrggghhh! I can't decide either! :?
That's a tough call James. The only thing I can say would be flip a coin. I know that's not very helpful.
Well, just figure that you'll actually be getting all 3 eventually. Now, how to decide on which one you'll be getting later.
Ok, if it were me, I'd go with the irminia...no...ummm...yes! The irminia! I'm not sure if you've ever seen one in person but they are incredible, especially as adults. (not that a green bottle isn't)
Seriously.....I can't pick either. They are both good choices. Maybe wait until you can get all three and save on shipping. I guess if you HAVE to choose, I would get the Greenbottle Blue. They have that cool gold patch on their abdomens as spiderlings, go through a lot of color changes as they grow and mature into beautiful adults, not to mention they are really hardy spiders. That is not to say that P. irmina is not a beautiful spider. They have those great irridescent footpads and the beautiful contrasting markings on their legs. Tough choice.