In a 9mm, I've always thought that the 124-127gr loadings offer the best balance of weight and velocity so I prefer them for SD (my favorite is Winchester Ranger-T 127gr +P+). For practice, I normally use 115gr FMJ because it's the most widely available and affordable.
Smith, and Wesson, and Me. -H. Callahan
Well waddaya know, one buwwet weft! -E. Fudd
All bad precedents begin as justifiable measures. -J. Caesar