Would you rather job A or b?

Job A) carpenter/labourer/apprentice.. pay 25$/hour. Lots of out of town work (in rentals or hotels) sometimes at home. Usually mon to fri. But sometimes 2 weeks on and few days off. Either flat out busy for a couple months. Or super slow, averaging 20-30 hours a week. Lots of room to the top. Lots to learn. But work is fairly inconsistent. Never know where you'll be next. Demanding work. No benefits.

Job B) maitenance/labour for the city (city worker). Odd jobs, painting, cleaning, some carpentry, some landscaping. General duties to keep a city running. Pay is 24$/hour. Full benefits, some room to move up, pay is capped out around 37$/hour but that's years of seniority. Monday to friday. Work is guaranteed 8 hours a day or more if required. Always at same location, around city limits. 

I'm in job A now. And it's getting old. The boss really likes me, but I havnt moved up in 3 years, even though I'm a really solid worker (truth). I got offered job B and im sleeping on it. 

Job A im scrambled. Picking up tools on site 1, then hauling lumber to site 2. Building on site 1 one day, then travel 4 hours to site 2. Get 1 day off. Then next month I'm laid off for a week, then next week I'm breaking my back. But I keep seeing me be the top guy in a few years.. idk, would you take the steady job over the hustle and bustle? 

It's like I'm always trying to impress someone when they have some hidden agenda. And it's been 3 years no promotion...

Thoughts?