Does it make Much difference from SEO 'Rankings' if the keyword in your H1 tag is CAPITALIZED or Non Capital ? eg, <H1>APPLE TREE</h1> = APPLE TREE or <H1>Apple tree</h1> = Apple tree ? I have optimized my page for my keywords, -H1 tag, -H2 tag, -Keyword Tag, -Meta Tag, -Keyword density, -Bold/Italic, -incoming links Etc, ...so have optimised the page well, BUT just wondering if I Made the H1 tag ALL CAPITALS or Non capitals, and Would that make That much a difference, or wouldn’t matter greatly? (considering I have optimized the page in the above forms) Is this the same with H2 tags?
Keep all your html tags lowercase. Shouldn't make much of a difference to a SE, but it looks cleaner (and if you are validating your code, it may be a requirement).
Caps, uncaps mean the same thing (if you google up a keyword in ALL CAPS or all lowercase you get the same results). Are you asking if you used ALL CAPS for a keyword on H1 and lowercaps on H2 if they would be the same? If yes.. yes they would be.
All caps looks pretty horrible from a user perspective and makes no difference from a SEO perspective.