So my character is going to be an imperial who uses most play styles throughout the game. I'm going to start off with a lot of sneak (for thieves guild) then i'l move into a warrior who uses magic often, so any suggestions?

What are you asking?

If you do a Jack-of-all-trades it'll be hard to focus your perks in certain skills to reach full potential in them. Don't really know what to tell you.

the imperial's starting abilities are pretty geared towards a paladin type character, with healing magic heavy armor and sword.

the initial stats won't stop you from playing in an entirely different style, but as has been mentioned a jack of all trades character is going to get pretty tough at high levels when none of your skills are maxed