My opinion from my own experience
tier 1
Fb
Fw
Ls trap
teledruid ( maybe tier 2 for tvt. )
barb ( def tier 1 for tvt, tier 1 or 2 for 1v1 )
tier 2
blizz
lightsorc
libby & hdin ( Probably tier 1 for tvt considering how versatile it is and good for 1vX and aura support, vigor for team rushing or hammer fields to protect team etc )
bowa
plague/ga
charger
necro
While all in tier 2 can be strong if played well, for both 1v1s and tvt they do have at least 3 or more disadvantage matchups each imo.
tier 3
v/t
shaper
cs java
kicker
uncommon builds etc.
(builds that are at a disadvantage in more than half of the 1v1 m/u's.)
Could be more precise with 4 tiers but cba

maybe forgot some builds.
This post was edited by Twinsen on Feb 24 2017 10:50am