Here are some good WordPress feed and email newsletter subscription plugins that satisfy all basic feed demands of both beginner and professional bloggers.
FeedBlitz FeedSmart simply redirects all your site RSS feed queries to your FeedBlitz feed, enabling consistent subscriber tracking. FeedBlitz is premium alternative for FeedBurner
It build FeedBlitz email newsletter subscription list faster by adding simple checkboxes on user registration and comment forms. View Screenshots here.
Plugin detects all possible ways to access original WordPress feeds and redirects them to FeedBurner feed. Yes it can redirect feeds for category and tag also.