I am mostly a coin hunter myself and do have a MXT the wife uses, had a reg T-2 and also a F75 SE. Of the 3 I like the F-75 myself for coin hunting, the MXT is a fun detector to use, in fact my favorite Whites I have used, now the T-2 for me is more sensitive and one I like for relic hunting, did find it false more on iron that the other 2 and dug more trash to coins as like I say it seem more sensitive. On the T-2 one of the first time I used it in a well worked area dug a walking lib half at 13 inches, but a very weak signal and yet repeatable enough to dig. Also in another old park found a small (half the size of a dime)1853 California gold coin that was not gold at all and think it was a souvenir that was around 7 inches deep. Another site I tried all metal being it was a old picnic grounds that was used back in the 30 and was picking up stick pins at 5 or more inches deep, so it seems very sensitive. My choice for easy to use is the MXT and fun to use, my next choice of those you mentioned would be the F75 SE for coin hunting and if I was just going to relic hunt the T-2 would be my choice.
I have tried a lot of different detectors and using a Minelab Sovereign since 1996 and also have a CTX 3030 I am trying to learn.
Just my 2 cents worth and opinions.
Good luck with your choice
Rick