Somehow theyre both very cute. Theres no particular mobile suit I like to draw. My favorite character is Kishiria Zabi. I like strategists more than people who react only to things right in front of them. Kishiria lives up to her own standards, which I like too.
Characters are definitely easier to draw.
3D parsing for is just fundamentally easier for living things and more time-consuming for objects like mecha, which are basically built of cubes. I think of mobile suits as basically similar to characters. Since they are shaped like people, it looks much better, when I'm painting them, to have them fire guns from human-like poses rather than from static poses. Although this does make things harder for me. There were both good and bad parts of making Side Story of Gundam Z .