A man with one watch knows what time it is. A man with two watches is never sure. I've seen several combinations of 'standard' λCDM parameters. The NED search site has the three year WMAP as the default and you can select the 5 year as an option. I've seen several papers on the Plank study with a different set than the WMAP. Is there a set of parameters that everyone agrees are the best use as of 2015?