Welcome back to Heresy Online.
The various marine codexes offer different things so it really depends on your playing style.
If you want up close and brutal hand to hand combat then you should probably select Blood Angels, or maybe Black Templars, although the Black Templar codex is quite old and I would avoid that for the short term as they will likly replace that some time soon (12 to 18 months is my guess).
For close quater fire fighting I would suggest DA, and maybe Space Marines with Vulcan He'stan special character. Normal Marines are a good counter all army, but the codex is also a bit dated and it can be hard to get the best from the Power armoured boys.
Space wolves are a good all round army, with strong hand to hand elements and some devastaing fire power in the form of long fangs.
Lastly Grey Knights have some of the most powerful rules in the game but can be a bit tricky to get right if you want to have a characterful army.
It all depends on how you want to play really.
Your toast has been burnt and no amount of scraping will get rid of the black bits.