Right - after briefly reading through this thread, I didn’t realise that there would be so much opposing opinion.
Personally - The championship has more scope to making a balanced game. My reasoning is that there are a lot of good clubs, as proved by those that got promoted last season Newcastle/Brighton/Huddlesfield with a lot of good other clubs Wolves/Leeds/QPR/Fulham/Wednesday/Preston/Derby who did well and are always in the mix too.
Money is generally balanced between clubs with clubs that have huge budgets like Villa or Newcastle have the penalty of a demoralised team as they have just been demoted. In the PL, if you play the top 6, what is there really to do?
Championship teams have more opportunities to promote from their homegrown under-23, to take on loan from the PL or to trial L2 players and build them up. PL team have to be good out the blocks.