Among the RE 350s, you can consider the Hunter / Bullet / Classic models for their comfortable ride, neutral ergonomics and smooth as well as characterful engine. In a similar vein, the Honda CB350s also warrant strong consideration for similar reasons. 

All the Harley-Davidson X440 models have a similar riding experience and only differ in terms of features and design, so pick the one you like the most. 

Lastly, we would also recommend you take a look at the Triumph Speed T4 and Triumph Speed 400 as they offer great performance and quality at a reasonable price. 

Take a test ride of all the bikes you shortlist before you decide. 

If you are open to the idea of a larger, premium machine, then bikes like the TVS Ronin, Royal Enfield Hunter 350 and Honda CB350 will be the options we recommend. If you want to instead go for a commuter bike, there are loads of great options in the 160cc space, such as the Honda Unicorn / SP160, Bajaj Pulsar N160, TVS Apache RTR 160 4V and Suzuki Gixxer. 

Take a test ride of all the bikes you shortlist with a pillion to see what suits you best. 

With its neutral ergonomics, gentle and measured power delivery, light clutch action and manageable seat height, the Honda CB350 H'ness should prove to be a great first bike for most riders. 

Honda bikes also have a reputation for great reliability and low running costs, for by and large, most two-wheelers it sells in India, which should give you added peace of mind. 

If you want an alternative from another brand with a similar riding experience and style, then the Royal Enfield Hunter 350 makes for a great option. 

Take a thorough test ride of both before you make your decision.

Since you haven't specified what displacement range or style of bike you are looking at, we'll give you multiple options to choose from. 

The Royal Enfield Hunter 350 is a good option because it will be comfortable, stylish and will give you decent performance and fuel economy too. Another bike worth taking a look at is the Honda CB300F, which is a friendly naked bike that will also be comfortable and fuel-efficient. You can also take a look at the Hero Xpulse 210, which will be far the most comfortable machine of all the bikes mentioned here. 

If you want to stick to the same displacement bracket, bikes like the TVS Apache RTR 160 4V and Bajaj Pulsar N160 are the options to consider. Take a test ride of everything you're considering before making a decision.  

Between the two bikes you're considering, we'd recommend you steer clear of the Moto Morini because of its minuscule dealer network and because this bike has yet to prove its reliability in our market. 

Coming to the Royal Enfield Bear 650 is a great bike in many ways, but its stiff rear suspension can be a dealbreaker over bad roads. Instead, we recommend you look at the Royal Enfield Interceptor 650 for highway usage. 

If you're open to the idea of a pre-loved machine, a good condition, used Kawasaki Versys 650 should be available around the Rs 5 lakh mark, which is a similar amount of money as the bikes you're considering anyway. 

Since you have a commute that has some highway riding, we'll recommend bikes displacing 250cc or more so you can maintain decent highway speeds without feeling the engine is strained. 

There are loads of options in your price bracket, like the Royal Enfield Hunter 350, TVS Ronin, Honda CB300F, Bajaj Pulsar N250, Hero Xpulse 210 and TVS Apache RTX 300. 

Take a test ride of all the machines you shortlist before going ahead with your purchase. 

The Yamaha XSR155 you have shortlisted will give you everything you want aside from pillion comfort, as its seat isn't very long. This could be a subjective issue based on your size as well as your pillion's, but by and large, its pillion comfort is likely to be average, nothing to write home about.

It will be a similar story with the Bajaj Pulsar N160 too. The TVS Ronin will offer you everything you are looking for, so that is the bike we would steer you toward. If you are open to considering other machines, the Royal Enfield Hunter 350 will be a good option too.