5D's, my favorite show of all time. This show is a beautiful work of art, with some of the most real characters I have ever experienced. However, between Dark Signers and Pre-WRPG there is a huge shift, however I personally adore season 2 for there depiction of the main threat of the series, Yliaster.
The art is beautiful, and the monsters are some of the most beautiful we've gotten yet. The Signer Dragon's complexity could make them hard to look at if your use to the original, but once adjusted they are some of the best designed monsters in the franchise. The Earthbound Immortals could
be considered simple, and they are simplified black versions of the Nazca Line the represent with a different color line vairty across them, but they somehow manage to still look amazingly badass. The Machine Emperors are just sheer eye candy to anyone a fan of machines in general, and the characters still have gravity-defying hair, making certain characters(ESPICALLY APORIA) a pain to draw.
The Voice Acting is sheer beautiful, from the sexy voices of Yusei Fudo and Aporia to just the plain awesome voice work that is given to Lucciano. However the music is where it really shines. Almost all OSTs are amazing, including Yusei's theme, Lucciano/Skiel's theme, Light and Dark, Placido's theme and many MANY others. However the openings, endings and inserts are where they just BOMB IT. 5D's and GX are the only shows were I love every single opening and ending, and my god, do they not disappoint. Future Colors, Cross Game, Start, Last Train, Going my Way!!, Believe in Nexus, Freedom, -OZONE-, Close to You and Kizuna are the best songs in the entire franchise by far, and we have the all holy insert song sung by freaking Masaaki Endoh known as Clear Mind.
I will admit I have a crush on Placido to the point where it's kinda scary and sad, but the characters feel so real. Yusei and Jack are by far the best Yugi/Kaiba duo yet, and the entire major rest of the list excluding the characters from Secruity and Satellite are amazing. Rua, Ruka, and Lucciano are by far the best children characters in this franchise along with Arc-V's Sora, and damn does Z-One troll everyone. There's even a character exclusive to the spinoff Bonds Beyond Time who gets mentioned, and well, just watch the freaking show.
I have never enjoyed a show this much. Every episode, even the filler, was good in some way. My personal favorite episodes are 105-110(the Placido VS Yusei mini-arc as I like to call it). But just, watch it.
This franchise is amazing, and this series is a treat from beyond heaven. If you like anime in general, WATCH YU-GI-OH! 5D'S RIGHT NOW.