I always enjoyed the election lead-up cos it meant that the usually slack firefighters actually started rocking up to calls to demonstrate their suitability as seniors and the usually bitchy ones started being really nice
I got hold of a few job descriptions for the various roles (available from Volly Support Officers) and this was helpful in sorting out who had the appropriate skills, but Camo is right - if you only have a few options, sometimes it's better the devil you know
But all good members of the heirarchy will be thinking about succession and should be endeavouring to train up others and impart knowledge and build leadership skills at every opportunity.
I don't think you'd ever be in a brigade (or any collection of humans for that matter!) where every member got along like....well, like a house on fire, but there's no point voting for someone just cos you get along with them. At one time or other we've all had to work with a SFF/Lt/Captain that we found utterly frustrating/condescending/rude on the fireground, but if they get the job done then they get my vote. If they can also deal sensitively with difficult members and mediate the inevitable personality clash or two then I wish I could vote for them twice.
Maybe that's it, we could have a list of skills and you give each candidate a score for each skill. Then who ever has the highest score gets the job. Then people also know what area they have to work on to get a position in the brigade.
What annoys me is pettiness and backstabbing off the fire ground that squashes team spirit, and that loses my vote quick smart.