I got the AL85 back when it came out really for the 25 mm tank thing. Both the Alien and AL85 are lousy with tc. The Pico does tc far better and can even be stepped up with custom firmware. If I were going to buy one or the other now I'd take the pico 25.
The flip side is I don't like the kit tank the pico uses while the AL85 at least has the baby beast. Small but a surprisingly good vape for factory coils.