The best guns on here are by far the Alpha Trooper, Rapidstrike, and the Zeus. The Zeus being better in all categories. It just doesn't fire darts so you'll still need to spend on ammo. Based on how this site works, getting a deal on a Zeus would most likely be the best. Stryfes are on sale at Walmart for 10 bucks right now. Stryfes are the overall "best" but I wouldn't want to waste votes on lesser blasters where the discount is minimal. The Alpha Trooper is sought after as well and would also be a decent contender. The Rapidstrike too since it's not terrible in stock form, more pricey, and can be nicely upgraded. The demolisher is fun so I can also see that winning. However you basically factor in the question of, "do I want a rocket or do I want full auto with a Rapidstrike as well as an 18 round mag/darts vs the smaller capacity magazine and dart count of the Demolisher?"