Recommendation?

Ok..one last thread...
Which CD do you guys recommend i buy next?
I have My Story & Rainbow..
I wanted to buy either:
LOVEppears
Memorial Address
I am...
Or Duty?
I know "I am" is good, but i kinda wanted ot be in for a suprise..songs i haven't heard.
Anyway..what do you people think?
BTW, i have heard almost nothing from "Duty" and about half of "LOVEppears"