The $ 64,000 Question is…how to make it LOUD (competitively) without destroying the mix?
The newest contender for me is from Melda Productions, a software company based in Prague, Czech Republic. They make a complete line of audio plug ins as well as a few synth based ones. The one that I had to have was the M Multiband Limiter.
It can be a tricky beast to tame (LOTS of control and parameters) but the starting presets are excellent. This one is sitting on my master bus now (along with Fab Filter and PSP Xenon).