As with Btline's other poll on long distance travel, I considered my own commute from Nailsea to Bristol (ten minutes), and voted accordingly.
Well, I didn't, actually: due to my two-fingered typing (if you'll pardon the expression!) I made a mess of it and apparently voted for 150s and Pacers, when I meant to vote for 150s and 158s - sorry, Btlines!
Among the trains that turn up for my daily commute are 150s and 158s - they're fine for the ten minutes it takes to get me into Bristol - even standing, due to crowding.
Other trains that call at Nailsea are
HSTs▸ (Mk3 refresh), but they are not really suited to Nailsea - due to our short platform /
SDO▸ / bicycle-wielding passenger complications - from my commuter perspective, anyway!
Also, we have a solitary Voyager service that calls at Nailsea, the 0846: while this does provide a useful additional service, it's not really suitable for such commuter work, due to SDO being used (even though all five carriages are well and truly platformed!) and similar bicycle-wielding passenger complications.
Vacman, I take your point about 158s generally being slow to load/unload due to limited door access - but for me, on my particular commute, that's more of an issue with the HSTs and Voyagers using SDO!
However, this is just my opinion, based on my daily commute: let the discussion (and the voting) continue!