Easy. Day traders. Good day traders can swing, position trade, or scalp for that matter - as well as day trade. Just a matter of perspective Yea, it comes down to opportunity. The more opportunity you have, all else equal (ie traders skill/profitability), the more money made.
Hmmm. Some think that price movements are fractal in nature - that trading monthly, daily, or 5 minute bars are quite similar. Others think not, that they require quite different techniques...
Sure. Opinions abound. IMHO, longer term trends towards fundamentals yet retains - albeit to a lesser extent - the same technical principles evident on the short term. Really depends on the instrument as well. Some more technical then others etc.
And daytraders win because daytraders think it's daytraders and ET is crawling with em. BTW, I've seen nothing but failed prop daytraders in just a couple years, during this bull market of all things. Even the rising stars once featured in Trader Monthly churning 100k shares a day...THEY'RE GONE. (Alright,aspiring daytraders, don't take offense. I mean to say "it depends on your style". Honest.) I vote futures and options, for the well capitalized of course. But that's what I do.