John, i think if the 160 and the 180 had came out at the exact same time.. I think i would still go for the 180... But the 160 is designed to match the M60's... even 160 would be a BIG step up from the 150 i would imagine..
In terms of minimizing driver lobing, yes the VP160 will be a lot better than the VP180 as a horizontal speaker. It's just the nature of the driver complement. At the same time the VP180 will have greater bass extension over the VP160 when crossed lower, capable of greater dynamics, playing louder when needed with an appropriate amp ect.
For a proper comparison you would have to listen to these center channels in multiple seating positions around the room like Jakewash did, not just in the sweet spot.
