[急]amazon 选组

刚收到Amazon暑期实习offer，有三个组可以选，三个都是非主流组。请前辈们给点建议：
1. Amazon Fresh：
[align="left"]AmazonFresh is Amazon’s grocery and non-grocery home delivery pilot in Seattle that delivers unique selection and incredible convenience to our customers. Full software platform - from the customer facing website and platform, to the warehouse management software, to tools to improve buying, to accounting, and more. Systems are built primarily in Java and Ruby and based on open source frameworks. We have now expanded into San Francisco and Los Angeles because of how successful Seattle has been![/align][align="left"]优点： 在加州，LA附近，橘子郡据说很不错。housing stipend给得很多（3500一个月）。[/align][align="left"]缺点： 感觉很部门比较冷门，害怕学不到东西，而且没有同去的同学。[/align]
[align="left"]2. SEO：[/align]
[align="left"]The Free Search Traffic (FST) team at amazon.com is looking for an experienced Software Development Engineer to innovate in the search engine optimization (SEO) and landing page optimization (LPO) space. The team is responsible for optimizing and enhancing amazon.com sites Worldwide to maximize free traffic from search engines and to improve the landing page experience for search referred customers using innovative LPO techniques. Do you want to write code that has a significant impact on Amazon’s bottom line? The Traffic Analytics team is the R&D arm of Amazon’s Traffic organization and we are looking for strong SDE’s at all levels. We are responsible for the production, processing, and analysis of large amounts of data in support of all of Amazon’s traffic channels, including, but not limited to email, social, display, paid search, and free search.[/align][align="left"]优点： 西雅图总部，去的同学多，可以抱团，而且SEO还算比Amazon Fresh稍微热门一点点，而且看他的介绍，感觉还能学到不少东西[/align][align="left"]缺点： 地点没有橘子郡吸引人[/align]
[align="left"]3. Marketplace：[/align][align="left"]Millions of Sellers from countries around the world (and growing) list their products for sale on the amazon.com Marketplace. Sellers are a critical part of Amazon’s ecosystem to deliver on our vision of offering the earth’s largest selection and lowest prices. These Sellers offer millions of unique products, providing a broad and diverse inventory of products from Books, Electronics, Apparel to Consumables and beyond. Our systems use technology appropriate to our needs, including Hadoop, Machine learning, highly scaled Java services, AWS technologies, Ajax rich UI's, and more.[/align][align="left"]暂时没考虑这个选项。[/align]

[align="left"]请各位给个建议。同时不知道哪边return offer比较容易一点，还请各位有经验的同学不吝赐教！[/align][align="left"]谢谢[/align]

补充内容 (2014-3-25 03:39):
最后争取到了去Phoenix。但是发现Phoenix没有做SDE的地方啊？看到附近有个Tempe是做SDE的，是不是marketplace的开发是在Tempe？ 求知情人告知！