Spire for me, got 2 now.( 1 for sons LV1)
Had Rotors in the past and they were fine,we had the occasional jams, good on battery's but noisy when empty.( bit fugly with the high top on) Rotors bought second hand, then sold them for what I paid .
Bought 2 Spires one was a 200 so I bought the 260 shell, they are great,I love the larger feed hole,I seem to spill less and being 260 it just seems to swallow paint.
The quick change lid/ speed feed is a great idea,much easier than unscrewing little screws or having to have a spare top if its raining.
I did have issues with pop-corning on the second one but a bit of Internet research gave me the settings to sort it out easily enough.
Spring ramp is essential if you don't want to have to shake it,should come with it but cheap enough .
So I love the shape/performance very pleased with them.