When I owned the games... I was a very haphazard Pokemon trainer. Wanting to beat it, I disliked spending time leveling and otherwise grinding. As a result... all but my starter were thoroughly untrained... My starter actually being "ovetrained" if you will. With maybe another falling a good 5-ish levels short of being "on par." If I didn't supplement my team with the legendary Pokemon... I was pretty much screwed unless I wanted to buy 99 max revives/full restores and do a lot of soft resets until I can claim victory... ;s Yeah. If I played now though, I would not use the legendaries as I would actually be interested in forming a balanced team.