是否更好的创建自定义模型或使用数据库模型到视图？

Question

目前，我有一个Comic模型，可以返回到以下视图：

var db = new ComicEntities();
var Comic = from s in db.Comics
    .Where(i => i.Comic_Id == comicId)
    .Include(i => i.ComicAuthors)
    .Include("ComicAuthors.User")
    .Include(i => i.ComicCategories)
    .Include("ComicCategories.Category")
    //.Include(i => i.ComicAltTitles)
    .Include(i => i.Chapters)
    .Include("Chapters.Pages")
    //.Include(i => i.ComicRatings)
    .Include(i => i.ComicReviews)
    .Include("ComicReviews.ComicRating")
    .Include("ComicReviews.User")
    select s;

我还有一个替代方案：

var db = new ComicEntities();
    var Comic = from s in db.Comics
        .Where(i => i.Comic_Id == comicId)
        .Include(i => i.ComicAuthors)
        .Include("ComicAuthors.User")
        .Include(i => i.ComicCategories)
        .Include("ComicCategories.Category")
        //.Include(i => i.ComicAltTitles)
        .Include(i => i.Chapters)
        .Include("Chapters.Pages")
        //.Include(i => i.ComicRatings)
        .Include(i => i.ComicReviews)
        .Include("ComicReviews.ComicRating")
        .Include("ComicReviews.User")
        select new ComicIndexView {
            comicLeftNavigationModel = new ComicLeftNavigationModel {
                chaptersCount = s.Chapters.Count(),
                pagesCount = s.Chapters.SelectMany(i => i.Pages).Count(),
                authors = s.ComicAuthors.Select(i => i.User.UserName).ToList(),
                genres = s.ComicCategories.Select(i => i.Category.Name).ToList(),
                isAuthor = s.ComicAuthors.Where(i => i.User_Id == WebSecurity.CurrentUserId).Any(),
                image = s.ComicImage,
                published = s.DatePublished,
                status = s.Completed,
                ratingCount = s.ComicRatings.Count(),
                ratingNumber = s.ComicRatings.Sum(i => i.Rating) / s.ComicRatings.Count()
            },
            comicIndexModel = new ComicIndexModel {
                 chapters = s.Chapters,
                 description = s.Description,
                 reviews = s.ComicReviews
             }
        };

我想知道哪种方法会给我最好的表现？我把它放在哪个方面真的很重要吗？什么是获得最佳性能的最佳方法？最好使用Context.ComicRatings.Where(i => i.UserId == 1)之类的单个查询而不是使用包含吗？