A baby AT will not fit into the same case as an XT on a motherboard
no
There are not really any advantages with a ATX over a Micro ATX just Micro ATX is smaller and ATX is larger
9.6 x 9.6
A full ATX offers more flexibility than a Micro ATX or a Mini ATX.
No. All ATX cases are capable of accepting a microATX or FlexATX motherboard as well.
micro atx
ATX
Micro ATX is one of the offshoots of ATX. The main difference from the main ATX form factor is size. ATX is a rectangular board size that measures 305mm. by 244mm. Micro ATX is a square that retains the 244mm. width but cuts down the length to by 61mm.
flex ATX above that is the micro ATX
Micro ATX
The four most popular motherboards types on the market today include ATX, Micro ATX, Baby AT, and proprietary boards. Proprietary motherboards are created by large PC manufacturers such as Dell, IBM, and Compaq, and are sold as part of their PCs.
That all depends. Most Z270 Motherboards will fit.. the case supports ATX, Micro ATX, and Mini ITX form factor boards. But you will not be able to fit E-ATX motherboards.
A "Mini tower" is often referred to as "Micro ATX" Form factor! They are very often only compatible with certain PSUs (Power supply units), Micro ATX motherboards and smaller video cards.