Top is a gamble IMO. Can't really do anything when your bot lane is feeding.
Unless you're playing Jax :^)
I think if any lane is fed then it sucks. That being said I think synergy with your support/adc matters a lot when playing in bot. Even if you're good mechanically as one role, you can't win the lane assured as a good chunk of winning the lane is dependent on the response of the other player. With top I'm responsible for fucking up/winning to a degree. At least moreso than bot. Having said that, adjusting to top is taking a while. xcloser is helping me get better though.