3 way speaker having tweeter,midrange,mid bass driver....!
2 way speaker system having a tweeter and mid bass driver,in those type of speakers the mid range frequency of the track is not played good @ all,due to missing of midrange driver....But they are helpful in sometimes when sub is installed in setup...
For alone speaker setup,then 3 way speaker system is good....
About your mentioned pioneer speakers then.....Pioneer 6994,If u want to run on the pre...!
And pioneer 6965v2,If u want to run speakers through amplifier....!
Both speakers are good,though pioneer 6965v2 is one hand ahead through pioneer 6994 in terms of bass....!