In my opinion the "BEST good/neutral ending":
Act1: Do NOT meet Nauxus in the Swamp (very important). First go to the Bull Village and kill the Lizard Spy. Suspicion: Nauxus 1 ; Axel 0
Act2: Help Thane. After you got the Fear Potion, take the Quest from Selye! (not Axel). Sus: Nauxus 3 ; Axel 1 (sidenote: Cause you killed the Spy and Axel likes you more, you can ask Axel about "What do the Bulls for fun?". :)
Act3: Help Nauxus with the Rogues Lizards. Sus: Nauxus 3 ; Axel 4
Act4: Give the Fruits to the Bull Tribe. (You MUST give the Fruits to the Bull-tribe to prevent the execution of the three Lizard Prisoners). Suspicion Final Score: Nauxus 3 ; Axel 2
For the price of one Life (the Lizard Spy) you save everyone else and claim ALL the benefits of the good ending: 1. Nauxus Romance (if you forgive him) + his Emblem 2. Happy Father-Son Reunion 3. Axel becoming foodtester for Thane's Hell Kitchen Quest -> meaning you avoid the loss of HP or LUST.
Enjoy the best outcome of the war. Probably canon as well.
The Act1: is often the Deal Breaker. Many People will walk straight to the swamp in order to meet Nauxus and the Lizardwife; this is wrong! You need to meet Thane first and kill the Spy.