Woodchuck has too much of a sugary aftertaste. Strongbow is the shit. I love it. People make fun of me for drinking it instead of beer (I still love beer) until they drink it. It's stronger than beer, and if you're not careful you can drink a six pack in no time flat since it's easier to drink faster than beer. Strongbow has caused me to go home a time or two with a woman (the ex) I shouldn't have.
If you can find it, then try "K". It's in a black bottle and is up there with Strongbow. It's near impossible to find though.
Magners is ok. Always seems a little more flat to me. A distributor told me that Magners uses a shit ton of food coloring and that it impacts the taste. I've also heard Magners is best served over ice.