I guess it depends what each process does. Most people like to EQ before compression. The compressor may shave off some top end so you may want to reinforce it after the compressor. I know that Warren sometimes likes to boost highs, de-ess and then boost the highs again. It all depends on your taste and experience. You can get a bit reckless though I think. If I end up with 10 plugins on a track I should probably have a decent think about it.