Vipermoon
King Marth's most trusted advisor.
There is no best way because it depends on your mood, the stage, the other character, and their mood. As long as you don't start a match with Smash attacks you're doing it right.What is the best way to start a match with Marth? Should I make them come to me or go after the aggressively?
Generally if they have projectiles you want to close as much distance as possible. Walk, don't dash, if you intend on perfect shielding your way through. If they aren't a character I can easily pressure, then usually I end up in the middle of the stage reacting to whatever they do first.