ARB bushes are very easy - 1x T50 bolt to undo to release a clamp each side which holds everything in place. Much easier with both sides of the car up in the air, doing 1 side at a time makes it virtually impossible as the ARB will be fighting against you
Wishbone bushes are a pain, rear ones require a press. front ones can be burnt out mostly and then tap out the remaining metal collar or use a hose cutter to get rid of most of it and then tap the rest of it out.
Removal of the front bush can be a nightmare and take ages but fitting the new ones is very easy