Bach is far more mid Baroque than late. Handel, Pergolesi, etc. are late being in the 18th century rather than the 17th.
But what Venetians are you putting up against him?
Vivaldi for one. He had a much more delicate touch. Of course, the Chiesa della Pieta requires that. The acoustics in that room are very different than the gothic set-up (as I've soloed in the Pieta, I can say that). I've come to really enjoy a composer from across Venice more in the classical years named Gallupi. There are others.
Bach, Mozart and Beethoven stand alone and everyone else must walk respectively behind them.
Well, to an extent, yes, but not exactly. Beethoven absolutely stands by himself as no one did what he did and no one has done it since (for which we singers are eternally grateful. Composing for the voice was not his thing). Mozart instinctively knew how to write for every instrument. No one else has had or has done that. Bach wrote an enormous body of work, yes, and a great organist, no doubt, but it puts me to sleep. As for comparison, all should be compared within their own time period as techniques developed over the last 500 years very differently. You can't put Tye next to Verdi any more than you can compare Beethoven to Britten. It's all reflective of different periods.