Poll: Which HL game had the best set of weapons?

FINAL RESULTS: Opposing Force wins, receiving 55% of the first place votes (43 votes out of 78). The full results are below (poor old Decay):

• Opposing Force: 43 (55%)
• Half-Life: 16 (21%)
• HL2: 19 (24%)
• Decay: 0 (0%)

Original post is below:

Here's a ranked-choice poll I created to see which Half-Life game people thought had the best selection of weapons:

https://civinomics.com/polls/295665

Simply rank the four games by which one you thought had the best selection of weapons. I only have four entries in my poll (Half-Life, Half-Life 2, Opposing Force and HL: Decay) because HL:BS and the episodic games don't have any new weapons, while HL: Decay allows you to play as a Vortigaunt.

Personally, I thought Opposing Force had the best weapons, with its displacer cannon, barnacle grappler and other crazy, interesting weapons. On the other end, I liked HL2's weapons the least, despite HL2 being my favorite Half-Life game. While the gravity gun was nice, I found the guns and ammo limit to be constraining and underwhelming. Given the setting, though, it's kind of understandable why HL2's weapons are that way. I never played Half-Life: Decay, so I can't comment about the Vortigaunt weapons.