It is impossible not to compare your child to other children. MJ is completely developmentally normal. She has not excelled in any particular area, but she is also not behind. She pulls to stand and cruises, but she is not walking yet. She makes an assortment of noises, and some are very close to being words for things (pretty sure we have 'quack quack' going for ducks and birds) but doesn't really have words or sounds that are clearly specific. And she is otherwise an engaging, curious, and regular toddler.
Of course then I see on some forum that someone's doctor said that by one year their child should have 3-4 words. And on this bog standard site that if your child isn't standing independently by 11 months they'll perform worse at age 4 than those that do. It's hard not to let little concerns creep in, although I'm generally good at ignoring them. I get why we need milestones, but maybe they should be 'if your child hasn't done x,y,z by this date, you need to see your doctor' which would remove the average from the discussion. Because an average is exactly that, an average!
Of course then there's research like this which suggests its the later social-emotional skills of your 4 year old that have a greater impact on their adult well being.
In my NCT of 8, where all the babies were born within 6 weeks of each other, we currently have 3 walkers. None of which are the oldest two (of which MJ is one) and I think only one with clear words, although I could be wrong there. So, as I said, developmentally normal. Not ahead, not behind. Sometimes for your own sanity, I think it's important to ignore the milestones.