Only bad Gaim Armor is Pine Arms one, as far as I am concerned. Like, secondary riders can get a bit of a shaft (Kiwi arms for example, or even, honestly Banana Arms. Also Bravo...) in my opinion, but Gaim's armors are really solid. I still like default Orange Arms the best. It's just awesome looking to me, and they totally made orange motif work without it looking silly, as far as I am concerned.
Kiwami I am also very much fond of... And, as it was pointed out in other topic, it's even a very direct real life reference to the Nobunaga's preferred set of armor...
And, in defense of Pine, it looks better on other riders. Ryugen especially, wish that was his secondary form rather than Kiwi, which is THE worst form in the series. Seriously, there's almost NO redeeming features here, it's an ugly design and color scheme, it looks ludicrous even by Gaim standards(Which are oddly good all things considered.) and the weapons are just unwieldy as hell.
But, wait, you think Bravo's bad? Huh? I love Bravo, he's got that insane spikiness and... I hate to use the term metal, but he really is just plain metal. Spikes, kickass Mohawk(When you can impale someone on your hair, it's kickass.) and he freaking dual wields chainswords. Sure, he apparently can't find the on button, but who cares, dual chainswords.
Then we get to Banana, which... well, I admit I like it more than the average joe, but mostly because it reminds me of the Magna Defender, and my nostalgia is working on hyperdrive. Although the Bana Spear is easily Baron's worst weapon, but when you're competing with the Mango Punisher(Anything with the name Punisher is instantly 58% cooler you know.) what can you do?
Kiwami... well, it's not God-Awful, but... well, it's still a let down after the gloriousness known as Kachidoki. That, and my immense distrust of the Kiwami Lockseed and of the form in general(Not needing to eat, the complete disconnect between normal Kouta fights and Kiwami fights... you do the math.) just leads me to not liking it as much as I could. That, and his hat is STILL dumb. I don't care if it's Nobunaga, the man had NO taste in headwear.