1. How much money do you want to spend?
Less than $600 before my 25%+ employee discount.
2. What resolution do you want but for 27 inch I would go with 1440p these days for that size?
Not really sure, but assumed 1440P,
3. What kind of games do you play as 144hz is great for fps but probably a bit of overkill for some games but it can be nice.
Mostly FPS games like ARMA III, CSGO, Overwatch Dayz etc.
4. Do you want a cheaper tn panel or prefer the ips panel monitors for better color quality?
Not really sure. I've never had an IPS. I heard people talk about them, but don't know what that would add to my life.
This is probably the best dell tn monitor for a 27 inch 144 hz for a decent price I can find really:
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&cs=19&l=en&sku=210-AGJR&ST=dell gaming s2716dg&dgc=ST&cid=298304&lid=5697863&acd=123098073120560&ven1=s8A4yE7lV&ven2=e&ven3=572302362695984715
This looks good, but seems pricey for a TN....but then again I've just started to look. It's the perfect shape and size and looks clean. thanks.