Yeah thanks for the games man. I used it as an oppurtunity to see how some of the other characters played since I hadn't played with em yet.
Jiggs: If you really want to get good with Jiggs instead of dropping her, you need to start using Pound and especially figure out the best times to use rollout. Incorporate those into your gameplay somehow. Sing is also very useful situationally. Jiggs has a MASSIVE air game and amazing recovery, so tech chase whenever applicable. Recovery using rollout can really rack up that kill count. The best Jiggs use I know, Maku, might have some other tips and such for you, so give him a PM if you want to know his strategy.
For Ice Climbers: Pretty good so far, it seem like you have chain grabbing and some desynchronizing down.
You need to switch up your fighting patterns a lot more. Grab Grab Grab becomes very predictable after a short time and in a serious match you will be punished for it repeatedly. Add in some other attack patterns to throw your opponent off guard and then commence the grabbing game. I don't really know much about IC in particular, but just varying the attack pattern would help them a ton.