There are things to consider:
- type of carry you plan to do (iwb, owb, apdx, pocket, etc)
- weight of loaded gun
- when you'd wear it (all the time, only in neighborhood, while sitting, running, etc)
- cost, to include maint, replacement (if in a dgu, you might not get it back or if you do, rust city on a $2000+ gun)
- cost/availability of ammo
- likelihood of practice/range time
- comfort in hand
- ease of access to controls
- how it works with your natural point of aim
- sight visibility and willingness to "upgrade" if needed
- tile to reload and capacity
- level of desired bling, flashiness, unicorn stickers
- breakdown and cleaning requirements (harder to clean prolly will decrease probability of cleaning)
- accuracy/precision requirements (1 moa at 25 yards vs battle)
- ... many other criteria here...
So, yea, like Marc said, it's subjective. Just keep looking, take your time, and think through it. Also, people will have their biases and so will you. Watch out for fanboyisms and negativity, or at least be able to spot and acknowledge it. Use what you consider to be the valid componemts of the negativity and fanboyisms as part of your vetting criteria. You'll do fine.
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And if Bruce Dickinson wants more cowbell, we should probably give him more cowbell!