In a laptop a mobile chip will last much longer and run cooler and won't drain the battery as fast. Pros and cons.
Yeah maybe that didn't come across too well. But what I meant was the question isn't as simple as AMD vs Intel and i3 Vs i5 vs i7 etc etc. Particularly as most of the benchmarks and hype tends to be focussed on the desktop processors.
General rule of thumb is intel is bestest.