Number two or the last is my vote. But what about trying something much simpler, less busy?

I know. I'm really struggling with this!! What would you suggest specifically?

I think they are all too busy for the active countertop. But since you already have a short matching backsplash there's really not a need for tile. Most of the time when people do tile they either do not get the short backsplash or remove it to place the tile. (and since it's functional, I think it's kind of a waste of what you already have just because it's more trendy to have tile of some sort).

None go with the counter. If you want tile, do a solid color, but remove the 4” backsplash first.

Those small tile glass backsplash are the most frequently regretted and ripped out backsplash we see here.

Just do a little search ....There are thousands and thousands of .... back splash too busy for granite

Dawn and Beth H (as well as the others), nailed it. All of your backsplash selections you show above are too busy. Let your countertop be the star. As palimpsest says (paraphrased) - take your time to find the right thing, you already have the 4" backsplash there now. You might not need to change it out at all. If you do choose to change your backsplash, remove the current 4 inch backsplash and put in something very, very simple like the solid white bars Beth shows above.

What about stainless steel? And, yes, it is Berwyn Cambria.

yes it would work. if the entire thing was stainless,,,or maybe stainless and plain white glass. as long as it's not a busy looking sheet.

but you still have to remove the 4" piece.

here is what your linear bar mosaics look like installed

this is what it looks like w/the 4" piece. (this is also a solid countertop. keep that in mind)

Your countertop is beautiful but, as everyone else already said, those mosaics are too busy. Number 2 would be best if you had to pick, but you don't have to. I would go with simple, white/gray marble tile. Polished Carrara White Tile 2x4 or Arabescato Carrara Honed Marble.

Remove the 4" granite splash then pick a less linear/busy/piecey tile. A solid color with complimentary (not contrasting) grout will make your counters sing.