I've had both and they had a pretty similar fit. Ion is a slightly stiffer flex that would probably be better with your Malolo in pow. I did like the grippier Vibram outsole on the Imperial though. The $100+ price difference between the two would prob play a factor in the decision-making process for most peeps though.
17 Korua Apollo . 17 Nitro Treehugger . 17 Lib x Lost Mayhem Short Fat . 17 Jones Storm Chaser . 16 Never Summer Swift
17 Burton Malavita Wing . 16 Burton Genesis X
16 Flow Talon