I like Fat EQ for more general shaping. Sounds good on leads and percussion sometimes....I actually like the boost on it a bit more than even channel eq on certain material as long it is under +6db. It somehow sounds a bit less sterile than the newer Logic EQs.....which can be good in some situations.
Channel EQ is a great all around surgical tool. The low cut and high cut sound quite decent.....much better at more drastic shaping than Fat EQ and Lin EQ imho. What I turn to, to shape bass and percussion.
I use Lin Phase EQ on atmospheric material, pads & the like. After reading Fader8s post regarding the Lin EQ and using my ears, I stopped using it on any material with attack transients that need to be punchy. I did notice that some of the punch was lacking in mixes where I used it a little excessively. It seems to be a bit more of this pristine (on the + side) or sterile (on the - side), depending on which side of the bed I woke up on that day.
Match EQ :: I know there is a lot of potential in that EQ, I would love to hear what some creative applications are for this outside of mastering. I haven't used it so much which I feel like is a shame....it seems uber-powerful.