In my personal experience with the Drop and Dead Rabbit, I preferred the Drop. It could put off some impressive flavor for a side-AF RDA. Then again I was only dripping when I used both of those RDAs, so I might have preferred the Dead Rabbit if I had been squonking back then. But if flavor is your biggest priority then the Variant is your best bet.
I have an original SS Dead Rabbit if you're interested, only used it a couple times so its in perfect shape, and would sell it for cheap.
But to be clear: There are more than a few RDAs I'd suggest before either of those. Check out the Ohana RDA if you want a real winner, Ranger Vapes had some in stock last time I checked. Or you can get a Recurve Dual for like $12 shipped from Vaporrange, but their 20% off sale might be ending soon.