Cool. Introduce us your top 3 Gundam series.
1-Gundam UC (079, Unicorn, etc). It is the original timeline and 079 is a wonderful classic. Unicorn was the last to come out.
2-Gundam SEED. I enjoy the story, love the mechs and Lunamaria Hawke.
3-Gundam 00 has kick ass mobile suits and mouth watering battles.
All of the Gundam series are radically different from each other and take place in different timelines, so if you don't like one series, you might like another or vise-versa. There are a ton, at least 13, I think 14 or 15 in total.
Most follow a dark tone, one's struggle through war. However there are more light hearted series.
Destiny's biggest mistake was switching from Shinn to Kira, they should have left Shinn and Athrun in the lead roles. After they went back to Kira being the main character most if not all of Shinn's character development was undone. I still enjoy Destiny to a degree, but I feel it would have been leagues better if they had just left it to Shinn's viewpoint.
Shinn was something that was needed. Kira's alright, but Lacus should really encourage him NOT to cry so often. Watching Kira getting shot down and him getting the Strike Freedom Gundam was worth it though.
I'm glad when it came to red heads that they replaced Flay with Lunamaria. The former was irritating and the latter was great. She was somewhat of the Red Comet, but not quite.
Also if you watch the HD remaster, around ep. 43 you can see a scene with Rey, Shinn, Meyrin and Luna.