So getting favor and buying gods for free is a big part of Smite for me... I haven't paid a cent for this game and have played it way more than BL 2 (and loving every free second of it... except for when I'm getting owned lol). Unfortunately I am getting closer to the level cap and will miss that sweet +500 favor bonus you get each level. I did notice something though that will help make the grind a bit better... the daily win bonus.
So for example, I just played a game and got my first win for the day. I got a total of around 283 favor, some for "goodwill" which I'm guessing is because I don't drop from games/get reported but I dunno, mine's at 100% of goodwill. Then you get a bonus for the number of bases you have up when you win and a big 150 point bonus for your "first win". That's like getting an extra wins worth of favor once per day. Not bad.
If you play 3 games a day and win at least one (about 5500/450) that's almost a new full price god every 12 days. Not as bad as I thought!