Coho season has pretty much ended for both systems. You may encounter some late coho salmon on the Squamish River but they are most likely coloured. The winter steelhead season has begun on the Chilliwack River, based on some of the local reports in the past few days. The chance of connecting with a steelhead is rather slim this early in the season so it may not be as fun for a new fisherman. My recommendation would be to bring a medium action baitcasting or spinning rod to the Squamish system, and spincast spinners/spoons or float fish with single egg patterns (trout beads, tiny gooey bobs, make sure they are not scented as there is a bait ban) for feeding bull trout, cutthroat trout and rainbow trout. When spincasting hardwares, you'll also have a chance to connect with a coho salmon, so your selection is fairly broad compared to the Chilliwack River. The scenery is also better, which can really enhance the experience even if there is a lack of fish.