NL can have smaller swings becuase you can control the protection of big hands. However, if you're still making mistakes, the swings will be larger.

The main difference between No Limit and Limit is simply the decisions.

Limit has smaller, more frequent decisions that usually have an easy solution.

No Limit has more exotic and difficult decisions with a lot more riding on the line but becuase of this, has higher win rates at equivalent stakes.

Personally, No Limit is more enjoyable becuase of it's difficulty.

-'rilla