Aside from its influence on the Eastern Pacific hurricane season, El Niño and La Niña have little detectable influence on summer climate across the U.S. Instead, their influence is strongest in winter.

Bear in mind, though, that the influence often won't be detectable until winter is over and scienitsts can tally up the seasonal averages. For places that tend to have wetter winters during El Niño, that elevated wetness can be the result of say, a handful more rainy days per month than usual, or somehwat more rain per storm than usual. It doesn't result from the "arrival" of a single mega-rainstorm of some kind.

In other words, El Niño is not a discrete event like a hurricane or a tsunami that will "arrive" or "hit" the West Coast at a single moment in time. You don't need to "head for the hills" to escape it ;-)

As far as the descriptions of the event as  "Super El Niño" or even "Godzilla El Niño," I hope you recognize that those are not scientific or official descriptions. They are coloful, memorable phrases that various folks have used informally to talk about this event. As Emily writes above, the current forecasts predict that the sea surface temperature anomaly in the tropical Pacific "ENSO3.4" monitoring region will peak this winter at 2C. Should that come to pass, it will be among the largest El Niño-related temperature anomalies on record, but it wouldn't be the largest: it would be weaker than both the 1997-98 and 1982-83 events. (You can see for yourself here:

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ensostuff/ens…)