I've experienced 144hz monitor but I don't own it personally, so I vouch for higher refresh rate, once you go 144hz, you'll never go bacc! My current one is a Dell with 60hz IPS panel, the color accuracy and viewing angles are great! As mnanand said, you've to goto your local showroom and experience different kind of monitors yourself.
If you want a "Gaming monitor", you definitely aren't looking for a 60hz panel. 75hz should be bare minimum