I saw this question on
Reddit and though maybe you guys would like to take a crack at it to:
Noob Question: When should you choose Phase Boots over Power Treads?
I will admit I buy Phase way more than Treads. I don't really like Treads all that much, I find its utility isn't as comparable to the other boots most of the time. In fact, for me this question would be "why should you choose Treads over Phase?"
Then the answer would be if I'm a super carry, who doesn't really need the regen of Tranquils because I'm owning so hard... nor needs the mobility of Phase because I have a blink or some other mobility skill. That would probably be when I buy Power Treads.
I really like the movespeed burst on Phase. I have lost count how many freaking times I've gotten away with it at 1hp in situations where I really should have died. Or the number of times where I could chase someone through creeps or Shadow Shaman wards. It's really, really good. It's a mini haste that will let you win many footraces and get you kills. I think that's more important than a 30% attack speed boost and 8 stats of your choice. The 24 damage is also really significant.
Also, I like Phase on super slow heroes that need amazing mobility in fights in order to stay alive and maximize damage. This means Zeus, Crystal Maiden, Windrunner, Rubick, etc. People like to buy Arcanes on Zeus which I don't think makes much sense. Arcanes only gives him enough mana to use like... 2 spells and it makes his movespeed terrible. Whereas with Phase, you can zip in and out of fights and hit a bit harder while making sure the enemy can't catch you... which I think is very important as Zeus needs to survive until he gets big mana regen items. Arcanes doesn't cut it.
In short, I buy Phase over Treads when I think damage + mini haste is more important... which is almost all the time.
What do you guys think?