Bike 1 is better than Bike 2 as far as climbing and quality/weight of the crank. But to compare Bike 3, we'll need to know more about the crank.
In making your comparisons, remember that the smaller the chainring, the easier the gear. But it's just the opposite with the cassette, in that the bigger the cog, the easier the gear. So, a 34 chainring is better for climbing than a 36 chainring. But ultimately, gearing is a function of both the chainring and the cassette, coupled together, so to compare apples to apples, you have to have both sets of numbers.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher