Everyone is going to have their own personal favorite sunblocks. It's best to just try out all different ones and see which ones work best for you.
Now, I am as fair as they get, strawberry blonde hair, blue eyes...yeah basically I burn easily...winter/spring/summer/fall. I have tried many products without any luck. Until I found my savior. I LOVE

the Coppertone Spectra 3 products. I was able to go to the Caribbean and lay out in the sun

without burning. I applied the sunblock twice a day (even in Disney) and never once got burnt, not at all. They products aren't very greasy and they don't have an overwhelming smell.
With it, I have been able to spend hours out on an uncovered boat, on a cruise ship, on the beach, and out in the unshaded areas of Epcot without getting a single area of skin burnt. I have
never had that happen before. Maybe others haven't been as successful with it as I have, but it has seriously been a life saver for me.
Here's some advice from an advid sunblock-er.
Remember the tops of your hands, the tops of your feet, the back of your knees, and your ears. Those are some of the most forgotten places, and they hurt like heck when they are bunt! Try putting on shoes with burnt feet, ouch! Also, get some chapstick with sunscreen in it, your lips will thank you. (Even DBF who refuses to use sunblock

remembers those areas because once they're burnt, they make for an unhappy vacationer.)