This is a classic issue.For most it comes down to rider size,rider fitness, riding ability,style,and the terrain that you ride in the most.There is no good answer to that question.Bikes are like women too.You might be happy with the one you got but something different........................Theres another typical rider evolution.Starting out on smaller displacement machines working up to big bores then back somewhere in the middle.I know a lot of older guys like me are starting to go back to smaller displacements where handling and braking make up for what you lose in power.Its also a challenge.300 lazy mans ride anywhere bike.250 the ultimate if they took all your bikes away and you had to pick one.Small bores if you like to crank on it all day.There are exceptions to all this.A broad generalization based on one guys experience riding in the northwest.