I wouldn't say there is a best monitor, rather you want to keep a couple of factors in mind then look for the best price. For a monitor thats 22" I would make a min of 1920 x 1080 the "recommended resolution". You want it so the response time is 5ms or less, anything above that on a monitor and you may get artifact issues when gaming. Keep static contrast ratio at least 1000:1, the higher the better though, you have to watch this though, as some manufactures like to post their dynamic contrast ration instead, which is fairly useless. I think I covered everything in basic, hope this helps and I'll try to answer any questions if I can.