It depends on the brewer, not so much the process. Extract is just another ingredient. It gives a good base profile to work with. You then can tweak the profile with steeping grains/partial mash, hop schedule, yeast and fermentation temp.
There are enough variables in the brew process to learn that starting with extract at least eliminates a little bit for a new brewer.
Both processes can make great beer.
What he said.
Get all your variables down, fermentation temp, sanitation, bottling, yeast pitching, hop schedule. And once your feel comfy with those bump up and go all grain