The strongest reasons to appeal include:
The judge granted your opponent complete or partial summary judgment based on insufficient evidence to proceed, lack of subject matter or personal jurisdiction, expiration of the statute of limitations period, claims preclusion, issue preclusion, or some other legal reason, thus enabling your opponent to win all or part of the case.
The judge instructed the jury incorrectly, and thus the jury decided your trial incorrectly.
The jury verdict against you was inequitably large and thus impossible or nearly impossible for you to pay.
The jury verdict for you was inequitably small and thus was not a fair recovery of your damages.
The judge made one or more errors of law harming your position.
The judge made one or more errors of evidence or procedure harming your position.
The judge granted your opponent a wrongful injunction against you.
The judge failed to grant you a rightful injunction against your opponent.