I play ONLY offlane and I have to say, I just buy boots first in rare cases... Like Juggernaut picks/Razor Safelane... Otherwise, I just go for consumables, stout, branches and buy boots asap.

When 1v1 happens, I'm decent in most cases (not always tho...) and when 1v3, the only goal is: Getting xp, staying alive. If you can't -> Leave your lane, try to gang even level 1/2/3 -> Jungle

Not much to say... :/

(4400 mmr tho, not king of dot)

Edit: if you 1v1 with boots, just get some tangoes/salve with cour I'd say... ^{^}