Well I would go with FX700, allthough isolation still worries me, I couldnt get a clear answer on how well they do isolate street / bus noise yet, so thats the only problem.
Keep in mind that I used Sennheiser CX300ii Precision and Logitech Ultimate Ears 350 before so all of these headphones will definitely blow my mind, price is not an issue (I am willing to spend maximum of 400€, in that price range are Turbines Copper, but they had less bass) so I am open for everything.
You guys mentioned differences between Golds and IE80, but frankly, I am not sure what do you mean by phrases such as "fast bass", "wider soundstage" (ok, Ive googled a bit what does soundstage mean so I guess I know what it is, tho, I dont know how it "sounds") and so on. I am not "noob", I really appreciate good sound quality, I can surely tell difference between cheap and expensive earbuds, I am not just familiar with these technical terms.
So far from my point of view its FX700 (when I ignore isolation "issue") > IE80 > MTPG. Its just that I dont know how bad JVCs isolate, so as I dont know how IE80 isolates. MTPG seems to isolate pretty well and I read everywhere they have really "Monster" (you see what I did there =D) bass, but in same time people say that IE80 has same, even better bass, but they express themselves with these technical terms I do not follow.
If someone would be so kind to finally tell me how FX700 isolate street noise and maybe compare all of these headphones to CX300s or UE350s I would be really happy and thankful.
//oh and btw, I am sorry for making a new thread, I just noticed this huge thread where I should have asked.