Anti infantry tanks like the T-1B

Anti-infantry tanks and STAPS. Maybe one of your own lightsaber heroes if they're geared towards killing/assassinating heroes. If you're on the offensive, add orbital bombardment and bombing runs.

Almost all jedi type units are hard countered by aircraft. They literally cannot fight back against them. Alternatively, STAPs and similar speeder bike units work well if you micro them, keeping them out of melee range. The final option are heaps of anti-infantry vehicles

For defense, 2 artillery units behind a base shield and a nice amount of air gunships is ideal. HMP's and MAF's are good. An initial spawn of droidekas for rush caps as well, with your air units floating back and forth between enemy attacks, repairing behind your base shield as needed. Most other CIS units can be ignored for defense since CIS is more aggressive, attack oriented, and not really great at defense.

Seriously, HMP's and MAF's will hard-carry CIS battles to victory if you manage them well. HMP's are unimpressive on their own, but in large packs of 6 or more(remember they spawn in pairs), they will shred.

bikes ♥♥♥♥ on force users, you just have to move them to not get hit, air units too but while they are inmune to them usually are slower and with worse guns for the job

the stap radiation bomb, the hutt star wahetever has a det too and has fu ck ing disruptor as guns and as the republic all 2 bikes and the infantry support platform (AKA swamp speeder) all destory them