1) Make sure when you are signing superstars at the start, you offer your big stars a long contract. This way you don't have to spend loads of money like 3 months into the season. Also make sure you get at least 2 of the following.
Triple H
Undertaker
John Cena
Batista
2)Make sure your first few shows are good ones, try and use all your superstars to get them off to a good start, and put them in challenging and exciting matches. This means you will get a head start in the ratings over the rival brand.
3) Always offer a better PPV than just normal shows, this will make the PPV stand out and therefore get a higher rating.
4) If your stars get fatigued, say one of your main stars for example Triple H. Give him the night off whilst playing another huge star like Cena. Repeat this process with all your stars so your popularity doesn't go down, and so that your stars get a well earned rest.
5) Try get legends on your show. These superstars are very popular because of the fact that they are wrestling legends. Your ratings will go sky high if you sign a legend and send you flying above RAW.
6)This may sound slightly "not very good advice", but if you have a rubbish superstar with a low popularity rating, you may want to use him to your advantage. If a big star is unhappy because they have been loosing a lot, put them in a match against the rubbish star. Repeat the process with other stars untill they are happy. Sure, your crap stars popularity and morale will go down; but who cares!
7) When you need money, say to offer a wrestler a longer contract, make sure you take full advantage of the promos. Using an advertising promo is a big advantage or a merchandise promo so make sure you use them. This applies to a situation where your raing is consistently lower than the rival brand. Use an interference or slander promo to steal some of the fanes and lower the opponents rating.