I actually don't know what connecter Axial provides... I've never used their esc's before.
But I do know that Dean's plugs are the most used plugs and you can easily swap to them if you have a soldering iron.
I'd recommend doing this as you can buy most lipo's with Deans already installed and it helps if you're out with friends and someones battery dies, they can borrow one.
Here's where I get my lipo's.
IMO, a great product and great price.
I've been running them for a couple of years now and have had great success... and they are cheap enough to replace without feeling like I wasted my money (which I've done when I first started in the hobby).
Value Hobby R/C Hobby Store (Addison, Illinois): Batteries - Power