Quoted:
How's AR Gold? To be honest its look just kind of grabbed my attention but I heard Giesselle is one of the best
I think you need to consider what you are looking to do with an upgraded trigger.
There are match/target triggers and there are battle triggers. (well, for lack of a better word).
AR Gold and Giesselle are (mostly) 2-stage match/target triggers. If you are not familiar with 2-stage triggers, they pull through a distance with no interference and then STOP. That is your trigger break. It is usually very light and crisp.
The Spikes NiB is a "battle" trigger that is enhanced by a smooth nickle-boron coating. This is your standard trigger type where, except for some creep and take-up, it just gets pulled to let off a round.
There are advantages and disadvatanges of each type depending on your application. If you are building a varminter or an SPR type gun, then a 2-stage is nice. For close-in fighting, most will prefer the immediate battle triggers. The reason for this is that the reset is generally better suited for fast follow-ups, a more reliable and harder hammer-strike, and usually simpler, more robust components. A lot of people DO shoot fast with the 2-stage though (3 gun competition guys) and practice a pull-through trigger pull, but to me this just seems like a bad habit to break.
Worst comes to worst, you can always swap-out trigger types pretty simply if you are unsure. I have the spike's trigger kit and it is pretty nice. Not a match trigger or a gunsmith tuned trigger, but a definite improvement over the basic LPK setup. I would recommend trying the DPMS RRA NM 2-stage trigger if you think you may want to go 2 stage. The reason is simple. It is simply OUTSTANDING for a $70 trigger kit. Yeah, I'm sure the gieselle is better, but that is $200+. You are in CT right? Ask the guys at JoJo's what they put in their guns. It is the DPMS. RRA NM 2-stage.