[Matrixbeast]

Hmm...

Top 5 Suits:
5. Go-Buster. I never finished this series and I'm most certainly not a fan, but I've always loved the more militaristic designs some Sentai use. Go-Busters captured it excellently, and the suits are probably the prime reason why I'd even give it a second chance. The small animal touches to the helmet that don't completely overtake the design is also great.

4. Zyuranger. Further adding to the pantheon of series I've never finished, the Zyuranger suits are some of my favorites. Yes, I know them as Power Rangers, but it doesn't make them any less well designed. While I haven't been the biggest fan of white accents (I think black makes their primary color pop more), and the white is extremely prominent on the Zyuranger suits, it still looks great (Possibly because the white plays a larger part, being [color] and white, rather than [color] with some white).

3. JAKQ. I know so little about this series it's embarrassing. However, I love love love those suits (Pun not intended), so much so that I'm hoping for another card themed Sentai just so I can get suits like those again. The visors in the shape of their card suit, the sash that physically pins their card suit to their, well, suit, and dem capes~

2. Gekiranger. The greatest series also features some of the greatest costumes. They're unique, with the lack of a belt making their costumes one piece, giving them a design that easily sets them apart from other series. They're also quite simple, which works to their advantage. It makes watching them in action grant a greater sense of fluidity, and I can't get enough.

1. Kakuranger. Fucking ninjas. How could you go wrong? *Looks at Ninja Storm* Well...You can't go wrong with these suits! *Looks at Alien Rangers*...You know what, you still can't go wrong. I loved the Kakuranger suits so much that I sat through Alien Rangers during initial airings and reruns just to see those glorious, glorious costumes. The ninja motif is simple, with hints of various colors, but not to the point of making them look cluttered. Their symbol on their chest looks great, and their helmets are all unique without altering the silhouette.
I can't get over how well the Kakuranger suits were designed.

Honorable Mentions: Gaoranger, Dekaranger, Jetman, Maskman

Top 5 Individual Suits:
5. Red Falcon (Liveman). I absolutely love the design of Red Falcon. The helmet is designed great, I love the simple falcon emblem on his chest (Being a white outline), and it all looks great. I would put the Liveman team on the honorable mentions, but I felt Red Falcon's design was the only noteworthy one.

4. Black Knight (Gingaman). That design was so gorgeous that I'm disappointed it came from a series with such ugly suits. Outside of the double visor Black Knight rocks, I don't have any real issues with it. The horns also found a nice little ratio, not being too small to look like nubs, and not being too big to be ridiculous. Add in a badass cape and a bitchin' sword, and you have one hell of a design.

3. Kurojishi Rio (Gekiranger). Antagonist of Gekiranger, but honorary Gekiranger nonetheless, making him an "Other" hero. I can't get enough of that suit. Like, at all. It contrasts well with the Geki suits, being highly detailed and more armored, but still just as mobile.

2. KyoryuGold (Kyoryuger). I am not a fan of the Kyoryuger suits. However, Gold's design, while using the same conventions of his allies, has it better off simply because the gold and silver combo just looks better. His Gabrichanger adds to his look, and the wings are nice additions to his design over the others.

1. Gosei Knight (Goseiger). His introduction gave me whiplash, but his design is solid. I love armored rangers, and Gosei Knight had the knight look down pat. The lion motif is great, and while his legs were a bit wonky with how the armor hanged off a bit too far, it's not a deal breaker and it doesn't take away. Gosei Knight looks amazing.

Honorable mentions: Titanium Ranger (Not included since the thread specified "Sentai" designs), TimeFire (Too closely resembles TimeRed), Geki Violet (Not included since I included Gekiranger in the general suits, and because Violet (And Chopper) are treated as main team members and not 6th/additional rangers, I felt it'd be cheating to add Violet), KingRanger (I love that suit, no doubt. It'd likely be here if I didn't include Red Falcon and only used 6th/Extra/Other rangers on the list), AbareKiller (So close, but just didn't make the cut).