Sorcerers are generally consider more fun to play (at least IME). They have lots of cool abilities, and can either cast more spells per day by converting sorcery points, or they get more bang for their buck for the ones they cast. It's flashy, but once they expend those sorcery points (or burn spell slots for more points for meta-magic), they quickly run out of steam.
A Wizard can ritual cast a lot of spells, even without preparing them. They can have a huge number of spells to choose from when preparing spells (not as much as Cleric and Druid, but still), allowing them a great deal of flexibility. They have a ridiculous variety of sub-classes (some of which are better than others), allowing for greater customization. They aren't flashy, but they're consistent.
Both have advantages, and really it comes down to style preference. I prefer the wizard, but most of my group likes the sorcerer more. My Gnome War Mage always seems to have the right spell for the right occasion, but my Aasimar Divine Soul can hammer out either healing or damage with careful use of Twinned Spell.