The calibers you mentioned both 243 and 270 are good calibers. Not that the 243 can not take down a deer because it sure can. But good shot placement is necessary. I also like the 243 caliber for varmints and predators. The 270 is an excellent deer rifle and medium sized game! And you can hunt varmints and predators with it with light weight bullets, but they are more expensive than the 243. The rifle you mentioned are all good rifles. Of course about any rifle will fairly retain its value if you take care of them. There are a lot of good rifles. The Tika, TC, and Remington are great rifles. Also there are others like Howa, CZ and of course SAKO. Oh certainly do not rule out the Savage rifles. I like Remington and SAKO myself and have great luck with them. My favorite older varmint rifle is a 243 SAKO Forester Varmint Model and my main hunting rifle is a Remington CDL 7mm Rem. Mag. I also have a 700 ADL in 243 and a 740 in 30-06. I do like my Remingtons. But stay with the 700 Models! If you go with Remington.
Good luck on your selection.