I prefer darker rums in my Daiquiri. My current recipe is a riff on the Smuggler's Cove Daiquiri #1:

1.5 oz Appleton Signature Rum
0.5 oz Hamilton 151 Overproof Rum
0.75 oz Fresh Lime Juice
0.5 oz 2:1 Demerara Syrup

I could drink this cocktail exclusively for the rest of my life and be perfectly happy.