Bach was familiar with the early Italian piano, and he didn't like it. The English piano with Broadwood's improvements appeared after Bach's death. The harpsichord has a limited dynamic range (The pedal harpsichord has the most.) but offers a distinct timbre for each of its four registers. The piano has a tremendous dynamic range with timbral uniformity. Sacrificing Bach's timbral variations, contrasts, and interplay for the piano's dynamics is a trade-off that I won't make.
The bagpipes usually get the #1 position in annoying instrument polls. I like bagpipes, but one can be overexposed.
I don't like the Theremin, the electric guitar, harmonica, glass harmonica (or armonica), electronic keyboards, and the ukulele. I don't like the accordion, but there is a certain charm to street musicians playing it on, say, rue de la Huchette.
As someone has said, we shouldn't think of the instruments used only in solos. I'm not a fan of clarinets or horns ("French" horns) , bit in quartets or orchestrally, they're fine.