You can beat jkr lead with empire, you just have to know how (it's a lot more difficult if kenobi is there, then you need DR, otherwise BSF will do)
You need palp lead (with zeta of course), vader, thrawn, bsf or DR and traya or nihilus (the last 2 are meatshield, jkr will always mark them first)
you start with MM with vader (you have to go before revan) then you do basic on everyone, it's really important that you land ability block on yoda. With thrawn you fracture yoda and with BSF you fear JKR, then you kill yoda, keep jolee ability blocked and kill revan as soon as possible (make sure revan doesn't do it's AoE by fearing or fracturing him because that will cleanse the ability block from jolee and then he can revive yoda)
It's a bit more challenging if yoda is faster then revan because then he will spread his tenacity up. But after you fracture him you can land debuffs on him, so you'll be able to kill him and the ablity block from is irresistible, so you'll also be able to land that. It will only be harder to control revan.
