We like the Clearly Filtered Water Filter Pitcher, which removes more than 200 contaminants. This is as comprehensive as the Berkey and many under-sink filtration devices, and is impressive for a pitcher filter. But once again, this is nowhere near as good as RO or distillation.
If you want ease of use, this is probably your best choice. But if you want fully purified water, a pitcher filter isn't going to cut it.