I'd like a majority of the combos to be more lenient, I really hate 1 frame links and think they are not necessary for this game.
The problem with your request is that it's very difficult to remove 1 frame links.
Let me demonstrate with an example using Evil Ryu's frame data (
http://wiki.shoryuken.com/Super_Street_Fighter_IV_AE/Evil_Ryu)
Say you don't like the fact that Mk. Axe kick -> cr.MP is a 1 frame link. If we make the Mk.Axe kick +5 on hit, instead of +4, you've turned it into a 2 frame link. All is good, right? Wrong.
In this scenario, we've created ANOTHER 1 frame link. From a Mk.Axe kick, we now have a 1 frame link to far MP and far LK. Giving E.Ryu a 1 frame link to far MP will allow him to cancel that into a LK axe kick, which he can FADC into cl.MP, so you've just buffed his damage output considerably.
This is just an example with one character, but adjusting frame data like this for other characters is a difficult task. You just have to accept 1 frame links. Some are very useful (Ken's new jab to sweep), but some can be avoided (Instead of Mk.Axe kick -> Cr.MP, you can Mk.Axe Kick -> Cr.LP, a 2 frame link which is less damaging).
*Edit*
If you want to reduce the startup of cr.MP to 3F instead of 4, so that Mk.Axe kick -> cr.MP is a 2F frame link, you create another 1F link (Cl.MP -> cr.MP)
Do you see what I'm saying? Very difficult to balance.