I've had a lot of racing wheel bases now, so will give you my thoughts:-
Logitech G25/27: fun for a bit, but noisy, being mostly plastic and you can do a lot better for the same money. Lots of upgrades available for the pedal set.
Fanatec Porsche GT2: (I have one for sale in outstanding condition): great feel and feedback for little money now. I'd compare this with the T300, without the ability to change rims. Combine with a set of Fanatec Clubsport Pedals and this would serve you very well.
Thrustmaster T300/TX: (I have a couple of these for sale, albeit both are not in the best condition, having been repaired) Great force feedback, good bang for the buck. Nice selection of interchangeable rim's.
Fanatec Clubsport v1: Fanastic all round. Interchangeable rims are great quality.
Fanatec Clubsport v2: A little better than the v1, but not really discernible to the average sim driver.
You need to consider where you will do the majority of your sim racing, i.e. desk mounted hardware is fun for a couple of days, but nothing compares to a dedicated rig. I have mine in the loft. In my opinion Playseat is an OK starter, but the centre shaft that holds the wheelbase is not located in the best place (between your legs), and for that reason I use a GT Omega Pro rig. I run triple 32" monitors, and the realism is great.
VR is a consideration too. I have an Oculus Rift DK2, and the compatibility with Project Cars on PC is good fun. I would recommend trying one before purchase, as it can make me feel sick as a dog at times. I rarely use it now.
You also need to consider what sim racing you are likely to want to do, as that influences which wheel to go for, as the above and other wheelbases are compatible with different hardware (PC, Xbox, PS4).
PC sim racing is by far the best, in that you can run games like iracing (subscription racing), run triple monitors for realism, and utilise custom displays and button boxes to allow you to build a dashboard. PC driving games can be bought for very little money and added to your steam account. I think must have bought all of them over the last year or so. Xbox One gaming is best done on Forza (I have all five of those titles), and each one is great fun. I feel that Assetto Corsa runs very nice on Xbox One. PS4, I have Project Cars and Dirt Rally, and they are both great games.