User blog comment:FlammeumDraco333/Tales From the Not so Blocky Seas/@comment-26778822-20151003131556/@comment-25584152-20151003192848

Baltimore is better in general. Good speed, armor and OP 8 inch guns.

In the update Portland got the ability to mount the good 8 inch guns so they are pretty much equal.

Portland gets less armor if I remember correctly. It looks really nice though.

Baltimore gets 6 secondary mounts that can mount the twin 5 inch turrets which IMO gives Baltimore the edge.