Dogfish Head IPAs taste like typical homebrew IPAs. I had the 90 min once and it was ok, mild and smooth. Had it another time and just cloyingly sweet.
Stone Ruination is way too hoppy in an overly simplified way. Too much in-your-face blatancy. The Cascade is getting old. Like much of Stone's image, it's just obnoxious.
Tried the Firestone a few months ago and it didn't leave an impression.
If you want a solid hoppy IPA then there's no beating Hop Stoopid by Lagunitas. The nose puts Stone to shame... a far more balanced end product in terms of hop aromatics... although not as malty as Stone, which just means it's more refreshing on a hot day. Some say the RR Pliny, but that is not as strong and didn't leave me with the same impression.