Ok. I want to make sure you know this, but holding mids in this game is different than highs and lows. With


you can hold both high kicks and high punches, with


you can hold both low kicks and low punches. For mids, you have to do


for punches and


for kicks. I'm an advanced player so I might see the options easily, and I don't know how useful these will be to you. I know I can execute these, but I'm not sure if you're there yet.
Ayane flying screw kick;
Either hold mid kick, or block it and grab low. Sidestepping also works, but is hard to time.
Kasumi's jumping knee;
Either hold mid kick, or block it and grab. Not sure about the sidestep.
Nyo Tengu's long range flying attack;
You have to learn the animation, and stop doing things that leave you unable to block at the moments the opponent is using it. Standing and blocking is the best option, although you can hold it with a mid punch and sidestep it too.
Rachel;
She's hard to fight for a lot of people because of her range. Honoka is going to have a hard time against her. You'll have to start learning which of Rachel's moves are safe and unsafe.
Unsafe moves give a guaranteed free grab. Make sure to capitalize on this. In order to really determine what is safe or not, you have to start learning about frame data... You might as well delve in and learn about advantage and disadvantage. Maybe this guide that I wrote a while back can help you...
http://www.doaworld.com/forums/index.php?/topic/3598-the-basics-of-frame-data-sort-of/