What makes the best "smile" emote?

Drawception (web game) takes its reaction emoji from an emoji icon collection, but with mixed opinions on the current "smile" emote I ask... are there better options? Which of these would you hypothetically appreciate most as a reaction to your drawing/message? Emoji source: https://www.flaticon.com/packs/emoji-icon-collection

Rank 6 items head-to-head — pick a favorite, one matchup at a time.