I currently have the house in whiterun (cheap 8000 kinda small). Decided i wanted a nicer place to live as befits a Thane of 2 cities and a dovakhin. Im currently lvl 20 and saving up for 25000 to buy the solitude house. Which of the houses is the nicest. I know that one of them has a former murderers house. Which is nicest and Worst house out of all of them.
The one called Honeyside in Riften has a Porch and Garden and U can add a Alchemy and Enchanting Lab too, but Riften it is in Thieves guild Territory.
Proudspire Manor at Solitude has a Patio and u can also add a Alchemy and Enchanting Lab too, but it is in Imperial City and the people are not very nice.
Vlindrel Hall is at Marcath, has an Entryway u can also furnish and u can also add a Alchemy and Enchanting Lab too, but politics are complicated there and u will need to be on the Stormcloaks side in the Civil Wars or wait till at least level 20 to get any other chance for the house, i heard. (BTW Argis the Bulwark will be your House Carl) (There is also an abandoned house in Marcath.)
Hjerm House is at Windhelm, (and is featured in the bood and ice quest also) and u can also add a Alchemy and Enchanting Lab too, and it has an Armory! This is the town u need to go to join the Stormcloaks near the beginning.
Breezehome at Whiterun, this has a cool Loft and and u can also add a Alchemy Lab too, and it is right by all u need and thankfully near a towngate, and just outside town are stables to buy a horse nearby and a carraige to take u to major cities too. U get to have Lydia as your House Carl. She has her own furnished room already upstairs. Looks way better once furnished and is an awesome starter home for sure.