The difference is mainly with the postbit:
In Modified, your avatar and info are horizontally positioned on the top of posts.
In Modified+, your avatar and info are vertically positioned on the left hand side of posts.
I prefer CM+ because it makes better use of screen real estate.
In Modified, your avatar and info are horizontally positioned on the top of posts.
In Modified+, your avatar and info are vertically positioned on the left hand side of posts.
I prefer CM+ because it makes better use of screen real estate.