Well agree to disagree
.
I'll have more grounds to debate once MoP is live.
When there is working numbers and such.
I feel like some glyphs may prove to be a necessity over others, of course you can't see it now, its only the beta.
However the possibly is there and in my opinion likely.
As long as choice exists people will do the math, find the numbers and determine whats best.
I have a feeling once those numbers appear and testing has been done, the benefit some glyphs provide will just out shine others.
There will be a list of whats most commonly best, whats debatablely competitive/ situational, and whats never going to be able to compete.
May I remind you many of the current glyphs still exist in the beta - increasing the choice of just what glyphs to use.
Here's a link showing the old Chain Heal glyph still available. As well as some new glyphs existing together.
http://imgur.com/UEIWA