Amen to big tubes, and 3 is much better than two. I prefer the Manitou 24' with big power. I have owned a few brands and different sizes and am very happy with my current setup. The "373" setup on the Manitou where the center log is 27" diameter and the outers are 23" provides a great ride with less roll when traversing rough water and gives a much better turning capability.
I have seen the JC's but never done much research into them. I am not crazy about the fiberglass playpens, pontoons tend to get dinged up a bit from docking due to the design and aluminum just pushes in instead of cracking/spidering. The polished logs are a bit too "pimp daddy" for me...
I like having a rear walkout floorplan, a solid tow bar for watersports, anti-microbial seating, and a big merc outboard.