Having a poll for taste only is difficult because I find that most of the best tasting are the poorest producers. Cultivars like Bombay, LZ, Edward and Peach cobbler to name a few. Not to mention tree size... Most people will want mangoes to produce a decent amount every year. Unless you have unlimited space, I don't think the best tasting mangoes should be the greatest concern. Taste and productivity both should be the most important IMO. With that said, my top 3 would be Sweet tart, Venus and Orange sherbet with Angie, Pickering and Cotton Candy all a close 4th.