First of all, what I liked most were the battles, the Rodan scene and the Soundtrack:
In the first battle between Godzilla and Ghidorah you experience your first impression when you see the two monsters fight (and that's what makes it partially better than the final battle), along with the tension of the protagonists trying to escape from there while they continue fighting and the film shots made notice the enormous size of monsters that did not even fit on the screen; also the scene of the awakening of Ghidorah was epic and memorable, showing in full body, quadruped posture (which I loved of his new design) and reflecting different personalities between their heads interacting as a team.
The next big scene was Rodan's awakening in Mexico! (my country). Something that I liked was how the film shots highlighted its gigantic size very well, adding to its appearance and its look, they made it really intimidating (I could feel in the place of the villagers ... poor people), also the lighting was clear enough to see it to every detail. But above all it was really exciting the pursuit between the Argo Jet (and the military units) and Rodan, to attract him to Ghidorah and all the destruction that this caused when moving. And although the battle was short, it was a memorable moment when both are about to clash, so that in the end, Ghidorah will then face Godzilla again! who showed that although Ghidorah has the advantage in his favor on the firm ground, in the water the papers are exchanged. In addition it was surprising that Ghidorah consists of a new regenerative ability (a scene by the way very disgusting). I want to mention also the brief but impressive appearance of the other titans after the call of Ghidorah.
While the final battle was the longest and most chaotic and also not with two, but with four monsters fighting each other! and with more extreme scenes such as Godzilla's fall, but especially the appearance of Fire Godzilla! It seemed to be made of lava. In this film not everything was hype, there was also tension and even compassion (for seeing the poor people running, or Mothra exhausted and damaged by Rodan, and later trying to defend Godzilla to end up dying in the attempt :'(
Going to the soundtrack, they did an excellent job of remastering classic songs, like composing new songs, they really get involved you in the development of the film. The action themes are awesome but one of the most notable is the theme of Mothra, and Ichiro Serisawa's sacrifice ("Goodbye Old Friend"), an important scene for me as it is an inverse homage to the original film of '54 : Serisawa dives into Godzilla's lair and sacrifices himself with his weapon but this time to save Godzilla instead of killing him. This could mark the start of a new Godzilla franchise.
As for designs, music, special effects and time that monsters appeared on screen, this is the best movie of the Godzilla franchise and one of my favorites.
As for my favorite Titan, the truth is very difficult, between Godzilla, Rodan or Ghidorah (I love reptiles).
On the one hand, since Godzilla 2014 came out it not only became my favorite version, but for me it is the best version of Godzilla created so far: it looks like a real real animal, not only in design and in the CGI, but also in the behavior, the movements and of course, his new remastered roar.
On the other hand, I love Wyvern-type dragons and I loved that Ghidorah now had complex wings with arms on them and that she now adopted a quadruped position; apart from his/their scream that although it differs a lot from the original, the change was for the better and sounds much more terrifying (honestly I never liked their traditional scream, it is anything less frightening). In addition each head acted independently and interacted with each other, they were not so "flat characters".
But I think my new favorite titan is Rodan, due to several aspects:
• First, its redesign: it looks quite realistic (even more than Ghidorah) and intimidating; although I assume that some of its physical characteristics were not updated as the real pterosaurs, I like its hybrid aspect between pterosaur and bird: it looks like an eagle, along with its scales that resemble feathers and its color palette. technically he is a colossal prehistoric Fenix. In fact (along with Ghidorah) he reminded me a lot of Smaug (when he throws himself into the air he just needed to say "I am fire, I am ... death." It was an excellent tribute to Fire Rodan.
• I am also very happy and satisfied with his new cry more "perodactyloid".
• I'm Mexican and I found it very flattering that they included one of the classic Kaijus in our country and filmed in the very Popocatepetl! = D (under another clear name). I suspect that was a nod to Godzilla's Quetzalcoatl Series that coincidentally was inspired by Rodan.
• He looks more aerodynamic and agile to fly than Ghidorah and faster than Mothra. He also had the courage to face King Ghidorah who outnumbered him.
• While a terrestrial Titan like Godzilla would take hours or even days to devastate an entire city, it would take Rodan a few hours or even minutes with the wind it generates while flying.
• If I could choose between flying, diving or walking to travel, I would choose to fly.