.Online genealogy search engine: FamilySearch.org
.DNA matching: Ancestry.com
.DNA Ethnicity: Ancestry.com
.Deeper DNA: FamilyTreeDNA
.Long distant European DNA matches: MyHeritage
.To see my DNA in a fun interactive way and to print: 23andMe
.Family history preservation: MyHeritage
.Communities, activities, and learning: FamilySearch.org
Everyone has their own preferences on which sites they like best, these are just some of mine. :)
I love the layout of Ancestry.com for your tree; it's easy to use, and easy on the eyes. I feel it's the most up to date place to store my tree. It's also free to store your tree on!
I love all the records you can get online for Ancestry.com, but over the years, as they have tried to make their search engine better, I have found it to be super frustrating at times, and not as great as before. :( A lot of the time, I keep Family Search open, while on Ancestry, to use their search engine for records that I know will be available there. I feel their search engine is much better. ;)
I feel Ancestry.com has the best DNA matching for me. I like their large pool of matches, and the aesthetics. This is where I get the most matches from, and rely heavily on my matching. I also love the new grouping feature they developed to group your matches, it makes it much easier to tell who the majority of your matches are, to build a DNA tree! ;)
Years ago, I felt FamilyTreeDNA gave me my most accurate ethnicity, but over the years, I feel Ancestry has the most accurate ethnicity estimate for me, even though they're constantly changing it! ;)
I feel FamilyTreeDNA is the best for deeper ancestry, and gives you amazing information!
I originally tested with 23andMe, for their medical aspect, years ago for fun! Who would've thought that they would have so many other features that I like! I really love 23andMe's DNA presentation! They present it it such an awesome, informative, easy to use, organized, and fun way! You can even order a book about your DNA!
I love that MyHeritage gives me matches of people in Europe, so far back, that I don't get on the other sites! They have awesome photo tools, I also love their family tree charts you can print out!!!
I absolutely love FamilySearch for their records, research Wiki, Communities, resources, interactive activities, classes, pretty much EVERYTHING! Their Collaborative Tree is great for beginners, and people looking to connect, but I feel is not the place to STORE your online tree for advance users, as that is not what it is meant for...if you use it as place to STORE or share YOUR Particular family tree, you will most likely be extremely frustrated, as it is a COLLABORATIVE tree, for everyone to collaborate on in that family line...it is a tree for everyone, not just your tree anymore :)