User blog comment:Braumissomanly/Would iceborn gauntlet be better with ability power or attack damage?/@comment-24706802-20140604104323/@comment-3148314-20140605090141

the advantage of IBG over trinity lies in the AoE-slow and CDR. Other champs additionally make good use of the CDR:

"Frozen Heart is better for tankiness" 

Ever thought about getting both? Skarner, Taric and Malphite would like to have a word with you.