I have been using raiden for over a month now. while I'm not as skilled as a lot of you. What i have found is that raidens teleport is not overwhelming by itself. Imo its actually pretty punishable if you have fast normals or specials. If not a D1 will do the trick. A Sign of a good raiden is one that uses the teleport not for offense but in defense. When i teleport to get inside and deal damage i almost always pay for it. From what i have seen the better raidens are using footsies to get their opponent in range and when they go for a string thats when they use teleport. Depending on the string you can jump in and punish, electric fly, dash 212, theres a lot of options. But once again I'm not considering myself a top raiden. but when i stay focused and use the teleport strictly as a counter offensive move it works a lot better for me.
With that being said I think raiden is still viable to win majors, he has the tools needed, but you will have to play him right, and like always skill imo still overcomes close match ups. I think if played to his potential he can beat any character, but like always its easier said than done, and in the right hands he is easily top 3. but thats just my two cents.
More than anything what teleport gives him is the ability to get the hell out of the corner. IF need be you can teleport and block then retreat. its certainly a great asset many characters lack. But after patches its not as powerful an offensive tool as it used to be. The reason i Enjoy plaing raiden= within my inner circle of friends who play, most of them pick powerful rushdown characters, cage, reptile, sonya, kabal. I found raiden a natural counter for their play styles just by picking the right time to teleport and attack, or using his good footsie game to land a B3 into combo. I haven't seen a lot of raiden in tournaments since early when JOP was using him, and I'm excited for this weekend to watch brady and see what he's using to deal with the variety of charchters I'm sure he will see, I think raiden can be a pain to deal with, but at the same time if your not smart you can get blown up. He has the tools to win, lets see if anyone can go on a good run with him?