Best Use for Hero Coins?

January 13th is coming and all Hero coins Expire and get Reset!
I am just wondering what everyone thinks is the best use of Hero coins. I have my own experience but would like to have the opinions of others.

So far, I've used the Hero coins to buy the big stuff like Bloody Amaranthine stones, Heavenly enchant scrolls(Made 2 x +12 bloody and 1 x +12 Dark weapons with them and still got 2 left) but I have less than 500 hero coins per character spread all across 7 x accounts now...LOL
Oh..boy...if all hero coins were shareable within the same account then I would've had enough to buy more big stuff but it is what it is....and I have like 10k+ Hero coins all fragmented now....

So what's best to buy? Any suggestions?
40 hero coins TW armor pack? 110 hero coins Apocalyse weapon pack?
220 hero coins seraph weapon pack? 50 hero coins Rune stone?
I need your people's opinion on this.

Thank you and HAPPY NEW YEAR! :)

Best Use for Hero Coins?