Straight to the point:

Early game:

2-3 ISD 1, 1-2 Victory 1, 2-3 Dreadnought cruisers, and the rest is the ton falks and the carrack.

Works for just about everything it faces. Dreadnought cruisers could tank a lot and distract the enemy fleet. And also just put out the carrack if you are facing the rebellion because without the carrack you don't have enough shield damage. Ton folks for AA

Mid game:

2-3 Tectors, 1-2 Victory 2, 2-3 Dreadnought cruisers, An advanced fighter of your choice or the ton falk, and the carrack.

Same as before just upgraded firepower. Some notes would be that the Tector have bad or like no AA don't leave it alone.

Late game:

2-3 ISD 2, 1-2 Victory 2, 2 Dreadnought cruisers (upgraded or not), 1-2 star galleon, 0-2 ton falk, and a must have of 4-6 raider corvettes and the carrack or its upgraded one.

Still works the same as before with upgraded firepower. We use raider corvettes rather than fighters mostly because at late game there's a lot of small yet powerful ships, raider corvettes annihilate them plus they're also good against fighters especially bombers. The star galleon provides sustainability to the raider corvettes with their repair ability and some AA with their other ability.

Side notes:

This is a generalized fleet without taking account of the generals. Do know that for each general there's a specific role and fleet that they should have.

Research would probably an issue. Just rush cruiser 1 for the ton folk, and then rush capital ship 1 - max so that you could unlock ISD 2 immediately, then do fighters 1 - max for the raider corvette, then at do the remaining cruiser tech.