There are many kinds of sequencers: DAW piano rolls, trackers, linear pitch sequencers, Cartesian sequencers, linear trigger sequencers, combo sequencers that handle both CVs and gates, Euclidean rhythm sequencers, algorithmic sequencers, Turing machines and similar, sequential switches, probably some I’m not even thinking of. And there are many different implementations of each.
I have an old habit of using piano-style sequencing, which gives a composer the most control and has a lot of flexibility. But I also enjoy working with unquantized pitches, and with rhythms and interactions that arise from combinations of patterns and algorithms.
In modular sequencing I never really “write” a part in the same way I do with MIDI. I might write a basic rhythm that drives algorithmically derived gates and triggers; I might build an intentional pitch sequence, but I won’t write a line the same way. In fact I like to set up a pitch sequence in Mimetic Digitalis and then trigger its X,Y,N and O in a different order. I also like timbre sequencing, which isn’t something that happens much with MIDI…
So… with all the possibilities out there, there might be some kind of sequencing that you don’t hate 