Primary spread is butter, but I like pretty much all other spreads on toast. Peanut butter on toast is really, really good. I love how it makes the peanut butter creamier. Jam spreads are all good too.
I voted Peanut Butter, 53.33% & Butter, 60%, but for breakfast, I prefer [1st] marmalade, mostly a British taste, & [2nd] Marmite, like Vegemite, tried it, but for me it's Marmite, which recently has been brought out in an upside-down squeezy pack, neat, you don't get your butter in the spread or vice-versa!